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406-Using Morningstar's Rating for Stocks
Course 406:
Using Morningstar's Rating for Stocks
It's amazing how much attention some people pay to stock quotes, and how
little they pay to the value of the underlying businesses they are buying.
At Morningstar, we evaluate stocks as pieces of a business and not as "little
wiggling things with charts attached." We believe that purchasing shares of
superior businesses at discounts to their fair values, and allowing those
businesses to compound value over long periods of time, is the surest way to
create wealth in the stock market.
The market may not always agree with our long-term investment philosophy, so
sometimes our recommendations are out of step with consensus thinking. When
stocks are high and richly valued, relatively few will receive the highest
Morningstar Rating of 5 stars. But when the market tumbles, there will be many
more 5-star stocks. We think good companies are more attractive when they are
cheap than when they are expensive, so we find fewer opportunities when the
market is overheating. If we wait to buy clothes and flat-panel televisions
until they go on sale, why shouldn't we also purchase stocks at bargain
prices? Morningstar has been analyzing investment strategies for nearly 20
years, and we have become experts at separating successful styles from the
mediocre majority. In this lesson, we will share our approach to rating stocks
so that you have an opportunity to benefit from our investment strategy and
build enduring wealth in the market.
What Is Fair Value?
Most any investment, whether it's buying a home or purchasing a stock, boils
down to an initial outlay followed by (hopefully) a stream of future income.
The trick is deciding on a fair price to pay for that expected stream of
future income.
Let's say a stock trades at $20 per share. If you crunch the
numbers--projected sales growth, future profit margins, and so on--you might
estimate the stock's fair price per share to be $30. You pay $20 for the
stock, and in return you receive a stream of income valued at $30. That's a
great deal. If the stock was trading at $40, above the $30 fair value of the
future income stream, you are looking at an expensive stock.
At Morningstar, our analysts estimate a company's fair value by determining
how much we would pay today for all the streams of excess cash generated by
the company in the future. We arrive at this value by forecasting a company's
future financial performance using a detailed discounted cash-flow model (see
Stocks 403) that factors in projections for the company's income statement,
balance sheet, and cash-flow statement. The result is an analyst-driven
estimate of the stock's fair value.
How Do We Assign Stars?
The Morningstar Rating for stocks is based on a stock's market price relative
to its estimated fair value, adjusted for risk. Generally speaking, stocks
trading at large discounts to our analysts' fair value estimates will receive
higher (4 or 5) star ratings, and stocks trading at large premiums to their
fair value estimates will receive lower (1 or 2) star ratings. Stocks that are
trading very close to our analysts' fair value estimates will usually get
3-star ratings.
Not all companies are created equal. As such, the discount required to our
fair value estimate to get to 5 stars increases as the quality of a company
decreases. We require smaller discounts for high-quality businesses because we
are more confident about our cash-flow projections and in their fair values.
The future is inherently uncertain, and that uncertainty is greater for some
companies than others. Accordingly, we require larger discounts to our fair
value for riskier or uncertain businesses.
When investing in any asset, you should expect a return that adequately
compensates you for the risks inherent in the investment. Assuming that the
stock's market price and fair value eventually converge, 3-star stocks should
offer a "fair return." A fair return is one that adequately compensates you
for the riskiness of the stock. Put another way, 3-star stocks should offer
investors a return that's roughly equal to the stock's cost of equity. The
cost of equity is often called the "required return," because it represents
the return an investor requires for taking on the risk of owning a stock.
On the other hand, 5-star stocks should offer an investor a return that's well
above the company's cost of equity. High-risk, 5-star stocks should also offer
a better expected return than low-risk, 5-star stocks. Conversely, low-rated
stocks have significantly lower expected returns. If a stock drops to 1 star,
that means we expect it to lose money for investors based on our assessment of
the stock's fair value.
It is important to remember that if a stock's market price is significantly
above our fair value estimate, it will receive a lower star rating, no matter
how wonderful we think the business or its management is. Even the best
company is a poor investment if an investor overpays for its shares.
What Causes a Star Rating to Change?
Morningstar's stock star ratings are updated daily, and therefore they can
change daily. The ratings can change because of a move in the stock's price, a
change in the analyst's estimate of the stock's fair value, a change in the
analyst's assessment of a company's business risk, or a combination of any of
these factors. The Morningstar Rating for stocks includes a small buffer
around the cutoff between each rating to reduce the number of rating changes
produced by random market "noise." If a $50 stock moves up and down by $0.25
each day over a few days, the buffer will prevent the star rating from
changing each day based on this insignificant change.
It is important to note that our fair value estimates do not change very
often, but the market prices do. Therefore, stocks often gain or lose stars
based just on movement in the share price. If we think a stock's fair value is
$50, and the shares decline to $40 without a change in the intrinsic value of
the business, the star rating will go up. Our estimate of what the business is
worth hasn't changed, but the shares are more attractive as an investment at
$40 than they were at $50.
A Different Valuation Approach
Morningstar's fair value estimate analysis is based on a different valuation
methodology than ratio-based approaches. If you've ever talked about P/E or
P/B (as we did in Stocks 108), you have valued stocks using ratios, also known
as multiples. Investors like to use ratios because they are easy to calculate
and readily available. The downside is that making sense of valuation ratios
usually requires a bit of context. A company can have a high P/E or P/B but
still be cheap based on fair value. If a computer company can grow fast
enough, its stock will deserve a high P/E, and it might even be a bargain.
Likewise, a company in a dying industry with negative growth may have a low
P/E and still be overvalued.
We believe that looking at future profits allows for a more sophisticated
approach to stock valuation. By determining a company's fair value based on a
projection of a company's future cash flows, we can determine whether a stock
is undervalued or overvalued. The advantage of this approach is that the
result is easy to understand and does not require as much context as the basic
ratios. While it takes more time and expertise to estimate future cash flows,
we believe that valuing stocks in this way allows investors to spot bargains
and make more intelligent investments.
The Bottom Line
Above all, keep in mind that true investing means buying a stake in a superior
business at a discounted price and allowing that business to compound in value
over a long period of time. It isn't hopping on the latest hot concept hoping
for a quick profit. That's why the Morningstar Rating for stocks does not
attempt to prognosticate short-term price movements or momentum. We believe
that the long-term value of a stock is tied to how much value the company
generates for its shareholders.
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