Morningstar Corporate Credit Rating
Morningstar’s Approach to Rating Corporate Credit
3 Offers a proprietary
measure of the credit quality of companies on our
coverage list.
3 Encapsulates our in-depth
modeling and quantitative
work in one letter grade.
3 Allows investors to rank
companies by each of
the four underlying components of our credit
ratings, including both
analyst-driven and
quantitative measures.
Purpose
Methodology
The Morningstar Corporate Credit Rating measures the
ability of a firm to satisfy its debt and debt-like obligations.
The higher the rating, the less likely we think the company
is to default on these obligations.
We feel it’s important to perform credit analysis through
different lenses—qualitative and quantitative, as well as
fundamental and market-driven. We therefore evaluate
each company in four broad categories.
The Morningstar Corporate Credit Rating builds on the
modeling expertise of our securities research team. For
each company, we publish:
Business Risk
Business Risk captures the fundamental uncertainty around
a firm’s business operations and the cash flow generated
by those operations. Key components of the Business Risk
rating include the Morningstar Economic Moat™ Rating and
the Morningstar Uncertainty Rating.
3 Five years of detailed pro-forma financial statements
3 Annual estimates of free cash flow
3 Provides access to all
the underlying forecasts
that go into the rating,
available through our institutional service.
3 Annual forecasts of return on invested capital
3 Scenario analyses, including upside and downside cases
3 Forecasts of leverage, coverage, and liquidity ratios
for five years
3 Estimates of off balance sheet liabilities
These forecasts are key inputs into the Morningstar
Corporate Credit Rating and are available to subscribers
at select.morningstar.com.
Cash Flow Cushion ™
Morningstar’s proprietary Cash Flow Cushion™ ratio is a
fundamental indicator of a firm’s future financial health
The measure reveals how many times a company’s internal
cash generation plus total excess liquid cash will cover
its debt-like contractual commitments over the next
five years. The Cash Flow Cushion acts as a predictor of
financial distress, bringing to light potential refinancing,
operational, and liquidity risks inherent to the firm.
Morningstar Research Methodology for Determining Corporate Credit Ratings
C
BB
Competitive
Analysis
Cash-Flow
Forecasts
Scenario
Analysis
Quantitative
Checks
Rating
Committee
AAA
A
CC
Analyst conducts
company and
industry research:
t
t
t
t
Management interviews
Conference calls
Trade show visits
Competitor, supplier,
distributor, and
customer interviews
t Assign Economic
Moat™ Rating
Analyst considers
company financial
statements
and competitive
dynamics to
forecast future
free cash
flows to the firm.
Analyst derives
estimate of CashFlow Cushion™.
Analysts run bull
and bear cases
through the model
to derive alternate
estimates of
enterprise value.
Based on competitive analysis,
cash-flow forecasts, and
scenario analysis,
the analyst
assigns
Business Risk.
We gauge a firm’s
health using
quantitative tools
supported by our
own backtesting
and academic
research.
Senior personnel
review each
company to
determine the
appropriate final
credit rating.
t Review modeling
t Morningstar
Solvency Score™
t Distance to Default
assumptions
BBB
CCC
B
D
AA
AAA
AA
A
BBB
Extremely Low Default Risk
Very Low Default Risk
Low Default Risk
Moderate Default Risk
BB
B
CCC
CC
Above Average Default Risk
High Default Risk
Currently Very High Default Risk
Currently Extreme Default Risk
t Approve
company-specific
adjustments
C
D
Imminent Payment Default
Payment Default
UR
UR+
UR-
Under Review
Positive Credit Implication
Negative Credit Implication
Morningstar Corporate Credit Rating
Morningstar’s Approach to Rating Corporate Credit
The advantage of the Cash Flow Cushion ratio relative to
other fundamental indicators of credit health is that the
measure focuses on the future cash-generating
performance of the firm derived from Morningstar’s
proprietary discounted cash flow model. By making
standardized adjustments for certain expenses to reflect
their debt-like characteristics, we can compare future
projected free cash flows with debt-like cash commitments
coming due in any particular year. The forward-looking
nature of this metric allows us to anticipate changes in a
firm’s financial health and pinpoint periods where cash
shortfalls are likely to occur.
Morningstar Solvency Score™
The Morningstar Solvency Score™ is a quantitative score
derived from both historical and forecasted financial ratios.
It includes ratios that focus on liquidity (a company’s
ability to meet short term cash outflows), profitability
(a company’s ability to generate profit per unit of input),
capital structure (how does the company finance its
operations), and interest coverage (how much of profit is
used up by interest payments).
Distance to Default
Morningstar’s quantitative Distance to Default measure
ranks companies on the likelihood that they will tumble
into financial distress. The measure is a linear model of the
percentile of a firm’s leverage (ratio of Enterprise Value to
Market Value), the percentile of a firm’s equity volatility
relative to the rest of the universe and the interaction of
these two percentiles. This is a proxy methodology for the
common definition of Distance to Default which relies on
option-based pricing models. The proxy has the benefit of
increased breadth of coverage, greater simplicity of
calculation, and more predictive power.
For each of these four categories, we assign a score, which
we then translate into a descriptive rating along the scale
of Very Good / Good / Fair / Poor / Very Poor.
Overall Credit Rating
The four component ratings roll up into a single preliminary credit rating. To determine the final credit rating,
a credit committee of at least five senior research personnel reviews each preliminary rating.
We review credit ratings on a regular basis and as events
warrant. Any change in rating must be approved by the
Credit Rating Committee.
Investor Access
Morningstar Corporate Credit Ratings are available on
Morningstar.com. Our credit research, including detailed
cash-flow models that contain all of the components of the
Morningstar Corporate Credit Rating, is available to
subscribers at select.morningstar.com.
Corporate Credit Rating Methodology
December 2014
© Morningstar 2014. All Rights Reserved. Redistribution is prohibited without written permission. Morningstar’s Credit Ratings & Research is
produced and offered by Morningstar, Inc., which is not registered with the U.S. Securities and Exchange Commission as a Nationally Recognized
Statistical Rating Organization (“NRSRO”).
Contents
Contents .......................................................................................................................................................... 2
Overview of Methodology................................................................................................................................ 3
Components of our Credit Ratings ................................................................................................................... 9
Business Risk .............................................................................................................................................. 9
The Cash Flow CushionTM .......................................................................................................................... 12
Morningstar Solvency ScoreTM .................................................................................................................. 15
Distance to Default ................................................................................................................................... 17
Assigning Issuer Credit Ratings ..................................................................................................................... 18
Appendix ....................................................................................................................................................... 20
Regulatory Score for Utilities .................................................................................................................... 20
2
Overview of Methodology
Morningstar’s credit rating process builds upon the knowledge we have amassed on companies during the
past decade. Just as our equity research methodology is forward-looking and based on fundamental
company research, our credit rating methodology is prospective and focuses on our expectations of future
cash flows. Four key components drive the Morningstar credit rating:
1. Business Risk, which encompasses country and industry risk factors, as well as Morningstar's
proprietary Economic Moat™ and Uncertainty Ratings.
2. Cash Flow Cushion™, a set of proprietary, forward-looking measures based on our analysts'
forecasts of cash flows and financial obligations.
3. Solvency Score™, a proprietary scoring system that measures a firm's leverage, liquidity, and
profitability.
4. Distance to Default, a quantitative model that rank-orders firms based on their likelihood of financial
distress using market-based inputs.
A company's scores in each area culminate into our final credit rating. Underlying this rating is a
fundamentally focused methodology and a robust, standardized set of procedures and core financial risk and
valuation tools used by Morningstar’s securities analysts. In this document, we provide a detailed overview of
how the Morningstar Corporate Credit Rating is derived, and also outline the analytical work that feeds into
our coverage of companies.
Business Risk Evaluation
There are two key elements that comprise our assessment of a firm's business risk: 1) economic moat
analysis and 2) uncertainty analysis.
Morningstar’s Economic Moat Rating
When it comes to company risk, our assessment of a firm's economic moat is the most important factor. The
concept of an economic moat plays a vital role not only in our qualitative assessment of a firm's long-term
cash generation potential, but also in the actual calculation and evaluation of the credit rating.
"Economic moat" is a term we use to describe the sustainability of a company's future economic profits. We
define economic profits as returns on invested capital, or ROICs, over and above our estimate of a firm's cost
of capital, or WACC (weighted average cost of capital). Competitive forces in a free-market economy tend to
chip away at firms that earn economic profits, because eventually competitors attracted to those profits will
employ strategies to capture some of those excess returns. We see the primary differentiating factor among
firms as being how long they can hold competitors at bay. Only firms with economic moats—something
inherent in their business model that rivals cannot easily replicate—can stave off competitive forces for a
prolonged period.
We assign one of three economic moat ratings: none, narrow, or wide. There are two major requirements for
firms to earn either a narrow or wide rating: 1) The prospect of earning above-average returns on capital, and
2) some competitive edge that prevents these returns from quickly eroding. To assess the sustainability of
excess profits, analysts perform ongoing assessments of what we call the Moat Trend™. A firm's moat trend
is positive in cases where we think its competitive advantage is growing stronger, stable where we don't
3
anticipate changes to our moat rating over the next several years, and negative when we see signs of
deterioration. The assumptions that we make about a firm's economic moat play a vital role in determining
the length of "economic outperformance" that we assume in our cash flow model.
Analysts must submit any proposed changes to the economic moat ratings to a committee made up of
senior members of Morningstar's securities research department, which then votes on the change.
Uncertainty Analysis
Morningstar's uncertainty rating represents our ability to bound the value of the shares in a company around
the fair value estimate, based on the characteristics of the business underlying the stock. Our framework decomposes the uncertainty around company value into four simplified conceptual elements: range of sales,
operating leverage, financial leverage, and contingent events. Some industries require special adjustments to
this formula, but the basic framework remains the same: bounding the range of the value of the firm
determined by discounting long-term cash flows. From a debtholder's perspective, the uncertainty rating
measures the stability and reliability of the "equity cushion" at the bottom of the capital structure.
Assessing Financial Risk
In evaluating financial risk, we score companies on the following three metrics:
Cash Flow Cushion™
Our proprietary Cash Flow CushionTM ratio gives us insight into whether a company can meet its capital
obligations well into the future. We make adjustments to the firm's reported operating cash flow to derive its
cash available for servicing its obligations, and compare our forecasts for that cash with the company's future
debt-related obligations, including interest and debt maturities.
Solvency Score™
We consider several ratios to assess a firm's financial strength, including the size of a company's obligations
relative to its assets, and comparing the firm's debt load with its cash flow. In addition to examining these
ratios in past years, our analysts explicitly forecast the cash flows we think a company is likely to earn in the
future, and consider how these balance sheet ratios will change over time. In addition to industry-standard
measures of profitability (such as profit margins and returns on equity), we focus on return on invested
capital as a key metric in determining whether a company's profits will benefit debt- and equityholders. At
Morningstar, we have been focusing on returns on invested capital to evaluate companies for more than a
decade, and we think it is particularly important to understand a firm's ability to generate adequate returns on
capital in order to accurately assess its prospects for meeting debt obligations.
Distance to Default
Morningstar's quantitative Distance to Default measure ranks companies on the likelihood that they will
tumble into financial distress. The measure is a linear model of the percentile of a firm's leverage (ratio of
Enterprise Value/Market Value), the percentile of a firm's equity volatility relative to the rest of the universe
and the interaction of these two percentiles. This is a proxy methodology for the common definition of
Distance to Default, which relies on option-based pricing models. The proxy has the benefit of increased
breadth of coverage, greater simplicity of calculation, and more predictive power.
4
Modeling Cash Flows
Analyzing current and past financial statements is important, but a company's ability to meet its debt
obligations can't be determined by gazing in the rearview mirror. That's why our analysts create a detailed
projection of a company's future cash flows, resulting from our analysts' independent primary research.
Analysts feed income statement, balance sheet, and cash flow assumptions into our standardized,
proprietary discounted cash flow modeling templates. We use scenario analysis and a variety of other
analytical tools to augment this process. The vast majority of our covered firms are forecast using a standard
operating company model. But we have also developed specialized models for determining credit ratings and
valuations for banks, and other financial entities.
As a result of our methodology, our model is divided into three distinct stages. Here is how the system works
in practice for operating companies:
First Stage
In the first stage, which can last five to 10 years, analysts make numerous detailed assumptions about items
such as revenue, profit margins, tax rates, changes in working capital accounts, capital spending, financing
requirements, and potential cash flow generation. These assumptions result in detailed forecasts of the
company's income statement, balance sheet, and cash flow statement. These projections are a key driver in
determining our credit rating for a given company.
Second Stage
The length of the second stage depends on the strength of the company's economic moat. We define the
second stage of our model as the period it will take the company's return on incremental invested capital to
decline (or rise) to its cost of capital. We forecast this period to last anywhere from 0 years (for companies
with no economic moat) to 25 years (for some wide-moat companies).
Third Stage: Perpetuity
In the final stage, we calculate a continuing value using a standard perpetuity formula. At perpetuity, the
return on new investment is set equal to the firm's real WACC. At this point, we believe the firm will no
longer be able to invest in new projects to earn a profit greater than its cost of capital. Thus, the company
could be generating significant free cash flow—the more free cash flow, the higher the value—but any net
new investment would destroy value for stakeholders.
Analysts look for off-balance-sheet assets and liabilities and adjust our estimate of a firm's value to
incorporate these impacts. The cash flows from all three stages are then discounted to the present value
using the WACC. By summing the discounted free cash flows from each period, we arrive at an enterprise
value for the firm. Then we can determine a firm's long-run ability to meet its debt obligations, as well as
calculate a fair value for the enterprise value of the company. The calculations differ for financial firms, but
the logic and reasoning behind our valuation remains the same for these firms as it does for operating
companies.
Scenario Analysis
A core part of our research process is to perform scenario analysis on each company we cover. Our analysts
typically model three to five different scenarios, stress-testing the model and examining the distribution of
resulting enterprise values. Such scenario analysis incorporates each analyst's assessment of both business
5
and financial risk. As part of the credit-rating review process, our credit analysts and credit rating committee
pay particular attention to the downside scenarios and the company's ability to cover financial obligations in
such scenarios.
The Morningstar Credit Rating
We use our assessment of a firm's Business Risk, Cash Flow Cushion, Solvency Score, and Distance to
Default to arrive at a preliminary credit rating for the firm. Our process for assigning final credit ratings is as
follows:
1. We derive the preliminary issuer credit rating based on our proprietary credit rating methodology.
2. The relevant analysts present the model-driven issuer credit rating to Morningstar's Credit Rating
Committee. The analyst can recommend a higher or lower rating than the model-driven rating, but
the ultimate decision rests with the Credit Rating Committee.
3. As the financial model is updated throughout the year, the credit analyst will evaluate any significant
changes to the model-driven credit rating. If the credit analyst believes that the model-driven rating
indicates that a change in the issuer credit rating may be warranted, or if the analyst has other
information that he/she feels may warrant a change in the credit rating, the analyst will present the
changes to the Rating Committee.
4. All changes to issuer ratings need to be approved by the Credit Rating Committee.
Our ratings are completely independent, objective, and forward-looking. We place considerable emphasis on
marrying qualitative and quantitative analysis to arrive at our credit ratings. We apply weightings to each
factor we consider, placing particular emphasis on some of the proprietary metrics we have honed over time,
including economic moat. We rate firms on an industry-standard scale, as described in the table on the
following page.
6
Credit Rating
AAA
AA
A
BBB
BB
B
CCC
CC
C
D
Description
Extremely low default risk. Issuers rated AAA typically operate wide-moat, lowuncertainty businesses and can easily cover all outstanding maturities with cash on
hand and one year's worth of free cash flow.
Very low default risk. Issuers rated AA tend to be wide- or narrow-moat
companies with low to medium uncertainty and a Morningstar Cash Flow
CushionTM that affords a very wide margin of safety against adverse developments.
Low default risk. Issuers rated A typically include wide- or narrow-moat
companies with medium to high uncertainty and a Morningstar Cash Flow
CushionTM that affords a wide margin of safety against adverse developments.
Moderate default risk. Issuers rated BBB typically include narrow- or no-moat
companies with medium to very high uncertainty and a Morningstar Cash Flow
CushionTM that affords a modest margin of safety against deteriorating business
conditions.
Above-average default risk. Issuers rated BB typically include no-moat
companies with high to very high uncertainty and a Morningstar Cash Flow
CushionTM that affords a minimal margin of safety against deteriorating business
conditions.
High default risk. Issuers rated B typically include no-moat companies with very
high uncertainty and a Morningstar Cash Flow CushionTM that indicates significant
dependence on favorable business conditions.
Currently very high default risk. Issuers rated CCC typically include no-moat
companies with very high uncertainty and a Morningstar Cash Flow CushionTM that
indicates significant dependence on favorable business conditions to avoid default
or significant capital restructuring.
Currently extreme default risk. Issuers rated CC typically include no-moat
companies with very high or extreme uncertainty and a Morningstar Cash Flow
CushionTM that indicates extreme dependence on favorable business conditions to
avoid default or significant capital restructuring.
Imminent payment default. Morningstar's C rating captures issuers that we
believe will encounter default in the very near term, including those firms that have
entered into a grace period following a skipped payment of an obligation.
In default. Morningstar reserves a D rating for companies that have defaulted in
fact or have declared bankruptcy.
Under Review Process
The UR designation means we have a rating that we are reviewing and will re-rate once we have enough
information. SUS is used when there are circumstances in which our rating is potentially going to go away, or
a rating is currently irrelevant or undeterminable.
For mergers, acquisitions, divestitures, spin-offs, and other events, here is an approach to our ratings
process:
7
a. Once a deal or other event is announced, we should place any credit ratings we think could change
Under Review at the analysts' discretion. If we have some confidence directionally which way a
rating could move, we qualify it as UR+ or UR-. If direction is unclear, we make it UR.
b. NOTE: if we are uncertain that we will be covering the succeeding credit, potentially because we
will not cover the equity or otherwise, we should implement a suspend rating (SUS). We would
then drop the rating eventually if we are not covering the credit or reinstate a rating if we end up
rating the succeeding credit. Example: if a company is splitting into three separate companies later
this year; our rating on that issuer should be denoted SUS as we don't know where the bonds will
end up and what the respective credit metrics will be, nor do we know if we will be covering all
three entities. Once the split is officially announced with details and we can assess where
bondholders end up, we can re-rate the credit as long as the financial model is updated.
c. If we are "highly confident" a deal or event will happen and can quantify the impact on the credit, we
take it to the credit committee to vote on the new rating ahead of the close of the deal.
d. In M&A transactions, for the acquiring company we assign the new rating after committee review
and drop the "UR" designation.
e. For the acquiree, we can also update our rating to the level of the acquirer if we believe bonds will
remain outstanding and assumed by the acquirer.
f.
For an acquiree in which all bonds will be retired upon closing of the deal, we should SUS the rating.
We should write that our rating will be dropped at the closing of the deal as neither the entity nor its
bonds will exist.
g. For expected-to-happen deals that subsequently get broken up, we should immediately put the
relevant names UR and then take the credit(s) to the committee to re-vote and re-assign a rating.
h. For deals in which we are uncertain whether they will happen, the analyst can use discretion on
what to do. For example, if an issuer were to reportedly get a takeover offer, we may not formally
put our ratings of either under review if we are highly suspect that a deal would be consummated,
or how it would be structured, or whether another bidder would come in.
8
Components of Our Credit Ratings
Business Risk
Two separate scores converge to form our Business Risk Score: Country Risk and Company Risk. Once we
assign these two component scores, we weight them as follows to determine the overall Business Risk
score for each company:
Country Risk
Company Risk
10%
90%
Country Risk
No matter how solid a company's finances, if it operates in an unstable political or economic environment, it
deserves a lower credit rating than a similar firm operating under more benign conditions. For those
companies that are domiciled outside the United States, or have significant foreign operations, we
incorporate an evaluation of country risk where appropriate. We score each country 1 to 25 (with 25 being
best) based on Morningstar's assessment of the cost of equity in foreign countries as well as incorporate
potential credit implications from: political instability, legal system, interest rates, inflation stability,
robustness of the financial markets/strength of banking system, and credit history where relevant.
Company Risk
We score each company on eight company-specific risk factors. The emphasis here is on the inherent
characteristics of the firm regardless of its current capital structure and financial strength (which we capture
with other measures). Measures such as the economic moat and uncertainty rating also contain an inherent
industry element. Some industries are more conducive to economic moats than others, and some industries
have inherently higher levels of uncertainty about future cash flow.
Economic Moat Rating
An essential part of our company analysis is the economic moat rating, which encapsulates our view as to a
company's competitive advantage and ability to earn excess returns on capital. We assign a score based on a
company's economic moat rating, as determined by our analysts. We occasionally make adjustments to the
moat score based on the moat trend (a negative trend, for example, might merit a reduction in the score).
Moat Rating
Wide
Narrow
None
Score
10
5
1
Uncertainty Rating
We assign a score based on a company's uncertainty rating, as determined by our analysts. Morningstar's
analysts assign uncertainty ratings based on their estimation of the range of possible revenue during the next
three years, the company's operating leverage, and the company's financial leverage. We assign the scores
as follows:
9
Uncertainty Rating
Low
Medium
High
Very High
Extreme
Score
10
7.5
5
2.5
1
Size
Smaller companies are inherently less stable, and more vulnerable to financial distress, than larger firms. We
assign companies a score based on revenue as follows:
Annual Revenue
Greater than $25 billion
Between $13 billion and $25 billion
Between $7 billion and $13 billion
Between $4.5 billion and $7 billion
Between $3 billion and $4.5 billion
Between $1.8 billion and $3 billion
Between $1 billion and $1.8 billion
Between $500 million and $1 billion
Between $200 million and $500 million
Less than $200 million
Score
10
9
8
7
6
5
4
3
2
1
We occasionally make adjustments to the size score for special situations. For example, a firm with a large
top line but razor-thin margins could merit a lower score than its revenue alone would indicate.
Product and Customer Concentration
An important factor in the stability of a company's future revenues and profits is the diversification of both its
product portfolio and its customer base. All else being equal, a company with a wide variety of products sold
to a variety of end markets is less subject to economic or regulatory shocks than a more focused company.
Our analysts assign a Concentration Score to their companies on a scale of 1 to 5, with large, diversified
firms scoring a 5, and companies with a single product or narrow base of customers scoring a 1.
Management
Our analysts assign each company we cover a management score of 1 to 5. The score captures our view of a
company's transparency, financial prudence, and management credibility. We place particular emphasis on
how conservative a management team is in managing its balance sheet, its policies with regards to share
buybacks and dividends, its tendency toward M&A activity, and other factors affecting bondholders. We also
consider whether the firm does what it says it is going to do with respect to the balance sheet: Has it
surprised bond holders (in a bad way) in the past? Is management willing to make hard choices (cut the
dividend, dilute equity, etc.) in order to maintain its financial health?
Those firms for which our view of management is neutral receive a score of 3. Modestly positive or negative
views result in a score of 4 or 2, respectively, while scores of 5 or 1 are reserved for extreme cases of good
or bad creditor treatment.
10
Dependence on Capital Markets
Our analysts score each company on its need to access the capital markets over our five-year forecast
horizon. Because capital markets are inherently unpredictable, a company whose survival depends on them is
more at risk than a company that can ignore the whims of the market. If the company definitely must access
capital markets during the next five years, it scores a 1. If it could easily continue to operate if all capital
markets closed for five years, it scores a 5.
Cyclicality of Operations
The greater the economic sensitivity of a firm, the more likely it is to go bankrupt, all else being equal. Our
analysts assess the cyclicality of each firms' operations and assign a score to those companies on a scale of
1 to 5. An extremely cyclical firm such as an airline may receive a score of 1, while a stable utility may
receive a score of 5.
Other Company-Risk Factors
For factors that the analyst or Credit Rating Committee think aren't adequately captured within one of the
other Business Risk metrics, we will occasionally make an entry into the other company risk factor score.
11
The Cash Flow Cushion™
Morningstar's proprietary Cash Flow Cushion™ ratio is a fundamental indicator of a firm's future financial
health, and is a key component of the Morningstar Credit Rating. The measure reveals how many times a
company's internal cash generation plus total excess liquid cash will cover its debtlike contractual
commitments over the next five years. At its core, the Cash Flow Cushion™ acts as a predictor of financial
distress, bringing to light potential refinancing, operational, and/or liquidity risk inherent to the firm.
The advantage of the Cash Flow Cushion™ ratio relative to other fundamental indicators of credit health is
that the measure focuses on the future cash-generating performance of the firm via Morningstar's proprietary
discounted cash flow model. By reclassifying certain cash expenses as liabilities to reflect their debtlike
characteristics, our analysts compare future projected free cash flows with debtlike cash commitments
coming due in any particular year. The forward-looking nature of this metric allows the analyst to better
anticipate changes in a firm's financial health, and pinpoint periods when cash shortfalls are likely to occur.
Here is the formulaic representation of the Cash Flow Cushion™ ratio used as a component of the
Morningstar Credit Rating:
Yr 5
TotalLiqui dCashYr 0   AdjustedFr eeCashFlow
Yr1
Yr 5
 DebtlikeContractualC ommitments
Yr1
Example
Typically, a bond default occurs as a result of any missed or delayed payment of interest or principal, resulting
in either bankruptcy, a distressed securities issuance, or distressed debt exchange. As such, the Cash Flow
Cushion™ focuses on the timing of interest and principal payments (including the debt of joint ventures, if
necessary) and considers other debt-like (off-balance sheet) mandatory cash contractual commitments—
including lease payments, pension/post retirement contributions, guarantees, legal contingent obligations,
etc., that if left unpaid, may ultimately lead to financial distress and/or bankruptcy. The sum of a firm's total
cash obligations and commitments during the next five years forms the denominator in the calculation of the
firm's Cash Flow Cushion.™
Let's walk through an assessment of a firm's debtlike commitments, using an example. In this example, in
2010 we estimated a firm's debt and debtlike commitments for the next five years as follows:
Dec-11
(Debt Maturity Schedule)
(Interest Expense)
(Cash Lease Payments)
(Cash Pension Contributions)
(Capital Lease Obligations)
(Other Mandatory Contractual Obligations)
(Other Mandatory Contractual Obligations)
Total Cash Obligations and Commitments
(1,185)
(201)
(139)
0
(17)
0
0
(1,542)
Dec-12
(752)
(201)
(104)
0
(18)
0
0
(1,075)
Dec-13
(922)
(201)
(104)
0
(8)
0
0
(1,235)
Dec-14
(1,413)
(201)
(104)
0
(17)
0
0
(1,735)
Dec-15
0
(201)
(104)
0
(17)
0
0
(322)
As the table above reveals, this example company faces a manageable debt maturity schedule, with just
more than 15% of its total debt ($5.4 billion) coming due each year, on average, during the next five years.
12
We don't anticipate this firm will need to make cash pension contributions over our forecast horizon. We also
consider cash interest payments, as well as cash outlays for capital leases in arriving at the firm's total cash
obligations and commitments.
After assessing the firm's debt profile and other cash needs, analysts then back out the cash components of
expense items included in net income from continuing operations that resemble debtlike contractual cash
commitments. This may include rent expense, pension expense, and other operating items, but not maturing
debt or other items that were not initially in net income. For example, if a cash debtlike expense item is
originally included in net income from continuing operations, analysts add the cash components of that item
back to net income from continuing operations before including it in total cash obligations and commitments
to avoid double counting. These adjusted items are then tax-affected to arrive at the firm's adjusted net
income from continuing operations.
Sticking with this example, we forecast the cash components of interest expense, rent expense, pension
expense (pension service cost), and capital lease expense in arriving at adjusted net income from continuing
operations for the company, per the following:
Dec-11
Other Pre-tax Adjustment
Other Pre-tax Adjustment
Net Income from Continuing Ops
Non-manufacturing Net Income
Add: Interest Expense, tax-effected
Add: Rent Expense, tax-effected
Add: Pension Service Cost, tax effected
Add: Capital Lease Obligations, tax effected
Other Pre-tax Adjustment, tax effected
Other Pre-tax Adjustment, tax effected
Adjusted Net Income
Dec-12
Dec-13
Dec-14
Dec-15
0
0
0
0
0
0
0
0
0
0
4,431
0
143
99
277
12
0
0
4,962
4,986
0
143
74
299
13
0
0
5,515
5,485
0
143
74
323
6
0
0
6,031
5,672
0
143
74
349
12
0
0
6,249
6,129
0
143
74
376
12
0
0
6,733
Our analysts' forecast of adjusted net income from continuing operations is then used to arrive at adjusted
cash flow from operations. In this case, we expect accounts receivable and inventory—two components of
net working capital—to rise as a result of rebounding sales, resulting in a use of cash.
We also subtract out the dividends we expect a company to pay over the forecast period. While dividends
are a discretionary cash outlay, once they're paid the money is unavailable to service or retire debt. Therefore
our typical assumption is to subtract forecast dividends to arrive at adjusted cash flow from operations.
The firm's total capital expenditures, asset sales/dispositions, acquisitions, and cash flows related to
investments in long-term operating assets are then subtracted from adjusted cash flow from operations in
arriving at the analysts' assessment of the company's adjusted free cash flow. In this example, the company
has been highly acquisitive during the recent past, spending nearly $3 billion to purchase companies in the
past three years. We forecast continued spending on both acquisitions and capital expenditures to fund
internal growth, as the table below shows:
13
Dec-11
Adjusted Cash Flow from Operations
(Capital Expenditures)
Asset Sales & Dispositions of Discontinued Operations
(Acquisitions) and (Increase) Decrease in Net Long Term Operating Assets
Adjusted Free Cash Flow
Dec-12
Dec-13
Dec-14
Dec-15
6,166
6,793
7,427
7,751
8,333
(1,400)
0
(1,166)
3,599
(1,400)
0
(1,262)
4,131
(1,700)
0
(1,363)
4,364
(1,700)
0
(1,471)
4,580
(1,700)
0
(1,471)
5,162
The sum of the analyst-adjusted free cash flows for this firm during the next five years is then added to the
firm's current total excess liquid cash and cash equivalents ($4.8 billion) in forming the numerator of the Cash
Flow Cushion™. In its truest form, the numerator reveals a company's total liquidity available to service debtlike cash commitments over the five-year forecast period.
Dec-11
Excess Cash and Cash Equivalents
(Illiquid Cash and Cash Equivalents)
Remaining Availability on Credit Facility
Asset-adjusted Potential Borrowings or (Repayment)
Total Liquid Cash and Cash Equivalents
Dec-12
Dec-13
Dec-14
Dec-15
4,796
6,583
8,405
10,211
12,352
0
0
4,796
0
0
6,583
0
0
8,405
0
0
10,211
0
12,352
Cash Flow CushionTM Used in the Morningstar Credit Rating
The Cash Flow Cushion™ ratio used in the generation of the Morningstar Credit Rating represents how many
times total excess liquid cash plus internal cash generation will cover debtlike contractual commitments
during the next five years, based on our estimates. In this case, we expect the firm's total cash balance plus
the sum of its forward adjusted free cash flow to cover its debtlike contractual commitments 2.8 times
(280.7%) over the next five years, which is a very healthy measure:
5-year Cash Flow Summary
Millions
% of Due
Total Cash Balance (t=0)
5-year Forward Adj. FCF
Cash and Cash Generation
3,377
13,212
16,589
57.2%
223.6%
280.7%
Cash Commitments, 5 yr
(5,909)
Revolver Availability (t=0)
0
0.0%
Asset-adj. Borrowings or (Repay), 5 yr 0
0.0%
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Morningstar Solvency ScoreTM
Any credit scoring system would be remiss to ignore a company's current financial health as described by key
financial ratios. In our effort to create a ratio-based metric, we used binary logistic regression analysis to
evaluate the predictive ability of several financial ratios commonly believed to be indicative of a company's
financial health. This extensive testing yielded a calculation that has shown to be more predictive of
corporate bankruptcy. We refer to it as the Morningstar Solvency ScoreTM.
Financial ratios can describe four main facets of a company's financial health: liquidity (a company's ability to
meet short-term cash outflows), profitability (a company's ability to generate profit per unit of input), capital
structure (how does the company finance its operations), and interest coverage (how much of profit is used
up by interest payments). The Morningstar Solvency ScoreTM includes one ratio from each of these four
categories.
Although our extensive testing was based on previously reported accounting values, Morningstar's analysts
continually forecast the very same accounting values for future time periods. No testing of our analysts'
forecasts has been possible due to data limitations, but it is reasonable to assume that using analyst
estimates of future accounting values will yield more predictive results than previously reported ratios. As a
result, the Morningstar Solvency ScoreTM uses some analyst estimates of future ratios.
Morningstar Solvency ScoreTM
5
TL0  CLO0 IE1  RE1

 4  ROIC1   1.5  QR0 
TA0  CLO0 EBITDAR1
Where:
TL0
CLO0
TAO
IE1
RE1
EBITDAR1
ROIC1
QR0
= Total Liabilities
= Capital Lease Obligations
= Total Assets
= Interest Expense
= Rent Expense
= Earnings before Interest, Taxes, Depreciation, Amortization and Rent
= Return on Invested Capital
= Quick Ratio
and:
ROIC1 =
EBITDAR1
IC 0
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and:
IC 0 = CA  NetPPE  NetGW  IA  LTOA  CLO  ExcessCash  AP  OtherCL  LTOL
Where:
CA
NetPPE
NetGW
IA
LTOA
CLO
ExcessCash
AP
OtherCL
LTOL
= Current Assets
= Net Property, Plant and Equipment
= Net Goodwill
= Intangible Assets
= Long Term Operating Assets
= Capital Lease Obligations
= Excess Cash
= Accounts Payable
= Other Current Liabilities
= Long Term Operating Liabilities
Part of the attractiveness of the Solvency ScoreTM is in its appeal to intuition. A practitioner of financial
analysis will recognize that each of the ratios included has its own ability to explain default risk. In addition,
the weighting scheme and ratio interaction appeal to common sense. For instance, it is logical to assume
that an interest coverage ratio would be highly predictive of default. Even healthy companies, however, can
have odd years in which profits may suffer and interest coverage is poor. For this reason, a multiplicative
combination of the interest coverage ratio with a capital structure ratio is more explanatory than either ratio
individually, or even a linear combination of the two. This is because interest coverage is not highly important
for companies with healthy balance sheets (perhaps they have cash on hand to weather even the most
severe of downturns), but interest coverage becomes more important as liabilities increase as a percentage
of a company's total capital structure.
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Distance to Default
The Distance to Default metric is a market-based measure of financial health. Both inputs—equity volatility
and the EVMV ratio—are calculated using daily updated market data, meaning Distance to Default is able to
incorporate new information faster than other measures of financial health. This allows the rating to be highly
responsive to early signs of financial distress.
Step 1: Calculate annualized trailing 300-day equity total return volatility (EQVOL)
Step 2: Calculate current enterprise value/market cap ratio (EVMV)
Step 3: Transform EQVOL into a percentile [0, 1] by ranking it relative to all other stocks in the calculable
universe (EQVOLP). 1 represents high equity volatility, 0 represents low equity volatility.
Step 4: Transform EVMV into a percentile [0, 1] by ranking it relative to all other stocks in the calculable
universe (EVMVP). 1 represents high leverage companies, 0 represents low leverage companies.
Step 5: Calculate new raw DTD = 1-(EQVOLP + EVMVP + EQVOLP*EVMVP)/3
Step 6: Transform new raw DTD into a decile [1, 10] by ranking it relative to all calculable U.S.-domiciled
stocks. 10 represents poor financial health while 1 represents strong financial health.
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Assigning Issuer Credit Ratings
Determining the Overall Credit Score
There are four main components of an issuer's numerical credit score. The Business Risk, Cash Flow
Cushion™, Solvency ScoreTM, and Distance to Default are combined as shown in the equation below.
Credit Score  3.5  DDD   3.5  SS D   8  BRD   MAX DDD , SS D , BRD   CC D 
Where:
DDD = Distance to Default Score
SSD = Solvency ScoreTM Score
BRD = Business Risk Score
CCD = Cash Flow CushionTM Score
Our back-testing results suggest that Solvency ScoreTM and Distance to Default score have enhanced
predictive ability when combined in equal weights. Business Risk holds greater weight than these
quantitative measures, given the significant influence that country, company, and industry risks have on a
firm's overall credit health and ability to meet future obligations. The equation is constructed with the Cash
Flow Cushion™ having a coefficient dependent on the values of the other variables so as to place greater
importance on the Cash Flow Cushion™ in levered scenarios. This construct is helpful because the Cash Flow
Cushion™ should have the fewest false positives of any of the factors. However, the Cash Flow Cushion™ is
also subject to analyst forecasts, which can contain modeling errors. In situations deemed "safe" by the DDD,
SSD, and BRD, the Cash Flow Cushion™ will have less weight in order to minimize the effect of any possible
modeling errors. We expect the Cash Flow Cushion™ to have fewer false positives because it describes the
true forecast cash inflows and outflows of a company. Since these cash flows represent the actual ability of
a firm to repay its obligations, the Cash Flow Cushion™ should be the best absolute predictor of financial
distress in our arsenal of scores.
The four pillars are transformed into scores from 1 to 10 (10 being worst). For Business Risk and Cash Flow
Cushion, the breakpoints used to assign the 1 through 10 scores are static and were set to produce a
relatively smooth distribution. For the Solvency ScoreTM, we used an entire business cycle's worth of data to
set the breakpoints, which are static as well. For Distance to Default, we assign the scores on a relative basis
versus the broad universe of companies for which we calculate the measure.
Because the breakpoints across the four metrics are relatively static, the scores are not relative measures. At
any particular time, significantly more than 10% of companies could have the same score for any particular
component.
Mapping Scores to Preliminary Credit Ratings
The credit score resulting from the above equation is mapped to a corresponding model-driven credit rating.
18
The credit analyst will present the model-driven issuer credit rating to Morningstar's Credit Rating Committee
and any other pertinent information to the committee. The analyst can recommend a higher or lower rating
than the model-driven rating, but the ultimate decision rests with the Credit Rating Committee.
The credit committee will review all cases where the analyst disagrees with the modeled credit rating to
bring consistency to the rating process. This will ensure that the analysts' arguments for differing from the
prescribed score are sound.
19
Appendix
Regulatory Score for Utilities
Many utilities have unique cash flow characteristics and risk profiles because of federal and state regulatory
oversight that seeks to maintain efficient operation of energy infrastructure. Regulators often grant utilities
monopoly ownership of the infrastructure assets. In return, those utilities must set customer rates at levels
that regulators or legislators determine during legal proceedings. Through this compact, both the utilities and
regulators have shared incentives to keep the infrastructure operating efficiently to serve customers and
constituents. This includes compensating capital providers with adequate returns.
To capture the regulatory effect on cash flow and bankruptcy risk, we implement a Regulatory Score in place
of the Solvency ScoreTM for most utilities with these operating characteristics. The Regulatory Score is an
absolute measure ranging from 1 (best) to 10 (worst) that measures cash flow certainty, ability to achieve
sufficient returns on capital, and general political support. It is utility-specific, not jurisdiction-specific.
Four subscores roll up into our overall Regulatory Score.
1. The first of four Regulatory Score components measures the spread between allowed returns on
equity and market costs for investment-grade corporate utility debt. The higher this regulatory equity
risk premium, the more substantial an earnings cushion lenders typically enjoy.
2. The second component measures a utility's ability to recover fuel costs, most utilities' largest
operating cost, in a timely manner.
3. The third component measures a utility's ability to adjust rates without full regulatory proceedings. A
higher level of automatic rate adjustments typically reduces regulatory risk, improves the
consistency of returns on capital and improves cash flow by reducing the short-term financing
required between cash outflows for expenses and cash inflows from rate recovery.
4. The final component captures our analysts' perception of whether the current and historical
relationship between a utility and its regulators suggests any regulatory biases that would favor
ratepayers relative to utility capital providers or vice versa.
We weight the four components equally to produce the final Regulatory Score.
20