Research Articles

When and Why to Buy or Sell a Stock (Part 1 of a Series)

Julie C - Sunday, October 24, 2010

Introduction

The two most important questions that investors in common stocks want answered are: When to buy, and when to sell?
Unfortunately, we don't believe that perfect answers to either question are possible. There are sound answers, prudent answers, and intelligent answers - but no perfect answers.
On the other hand, there often exist very obvious times when a stock should be bought or sold. Thus, obvious buy and sell mistakes can be avoided by investors who understand the fundamental principles behind valuation. Prudent investors, through the application of intelligent research, can engage in a reasoned approach to finding the appropriate answers.
The main reason that perfect answers are not possible can be found in the classic Warren Buffett quote: "The fact that people will be full of greed, fear or folly is predictable. The sequence is not predictable."
Buffett is speaking to the reality that the stock market can and often does temporarily miss-appraise stocks. During times of greed, the market is quite capable of overvaluing companies, sometimes to an outlandishly high level. When fear reigns (perhaps like it does today), the market can significantly undervalue a company.
Yet for the most part the market will price stocks close to intrinsic value, and when deviations do occur, they inevitably revert to the mean or correct themselves. The insidious part of this last statement is the confusing fact that the correction process can happen very quickly, or drag on over very long periods of time. Worse yet, there is often no rhyme or reason to explain why. When people are gripped with emotion they can, and will, do crazy and irrational things. Crazy and irrational behavior cannot be quantified or predicted; there are no answers or insights to be found.
The saddest part of what has been written so far is how it has caused people to think about the stock market, or the stock price movements of individual stocks. Our observations, based on anecdotal evidence gathered from speaking to hundreds if not thousands of investors leads us to conclude that many investors today possess a general distrust and apprehension regarding stocks and value.
Many believe that the markets are rigged against them, and others believe that there is no such thing as intrinsic value. These are just a few examples of the jaundice and prejudiced views that people hold regarding the financial markets and/or the people and institutions that oversee them.
This is not just sad, it also represents a serious potential obstruction against people achieving the financial security and independence we all desire. Knowledge is power, and this first of a series of articles on how to value common stocks is offered to provide investors empowerment. With this series of articles we endeavor to provide rational answers to these important questions based on timeless principles of business, economics and accounting.
To be clear, we are not suggesting that we can tell people how to perfectly time the markets. Quite the contrary: we believe that perfect timing of individual stock price movements or markets is an undeniable impossibility. As the great investor Bernard Baruch so aptly put it: "Don't try to buy at the bottom or sell at the top. This can't be done except by liars."
On the other hand, we are suggesting that investors are capable of, and will find it reasonably achievable, to determine the True Worth™ of an operating business. As previously stated, although this cannot be done with absolute perfection, it can be done within reasonable and practical levels of accuracy. Most importantly, within this process we will endeavor to show how calculating intrinsic value can be accomplished while simultaneously providing the investor a margin of safety.
This series of articles is dedicated to what Warren Buffett has often said was the most important lesson he learned from Ben Graham, his mentor. Mr. Graham's timeless words of wisdom summarize the objectives of this series of articles and are as follows:
"Ben Graham said you should look at stocks as small pieces of the business. Look at (market) fluctuations as your friend rather than your enemy - profit from folly rather than participate in it. He said the three most important words of investing: "margin of safety." I think those ideas, 100 years from now, will still be regarded as the three cornerstones of sound investing." Warren Buffett

What gives the business (stock) value?

Ultimately, any business, public or private, has its value derived from the amount of cash flow it is capable of generating for its stakeholders (stockholders). Not only will capital appreciation depend on the level of earnings, dividends are also a function of earnings. It is because of this principle that the discounted cash flow method of valuing a business is so widely accepted by scholars and professional investors. Consequently, this series of articles on how to value a business are going to be strongly based on utilizing fundamental valuations based on cash flows (earnings) as the primary method for finding True Worth™.
However, we are going to spare the reader the tedious task of evaluating or calculating long and complex mathematical formulas in order to achieve our stated goals. Instead, we will focus on presenting logical explanations and straightforward discussions of the principles behind these important valuation methods. Additionally, we will provide what we hope the reader finds as easy to understand pictures as evidence supporting our points. Anyone who is interested in a more scholarly approach can simply Google: how to value a company using the discounted cash flow method (DCF).

The commonsense thesis of business value

In this series we will attempt to illustrate what we believe to be the commonsense reality that faster growing businesses are worth more than slower growing businesses. The rationale behind this statement is logical and straightforward. The faster a business grows the larger the future income stream becomes that investors will be discounting back to the present value. Another way to look at this is that faster growth creates more earnings for markets to capitalize. The more earnings you have to be capitalized, the more valuable your business is.
Even more plainly stated, you buy a dollar's worth of earnings today that you believe will grow into two dollar’s worth of earnings in future time. Once you have twice as many dollars’ worth of earnings than you originally bought, you have in essence twice as many assets for the market to value. Even if future valuations (PE Ratios) are lower than when you originally purchased your first dollar’s worth of earnings, odds are in your favor that valuation will be higher since you now possess so much more earnings power. The speed or velocity by which your original dollar’s worth of earnings grow by is going to determine how long it takes for one dollar to grow into two dollars. This leads us into a discussion on the power of compounding.

The Rule of 72

There is an urban legend that attributes Albert Einstein with saying that compound interest is the most powerful force in the universe. Whether Albert Einstein actually said this or not is unknown. But the power of compounding is truly remarkable. Therefore, it would not surprise us that a genius like Albert Einstein might make such a statement. Personally, I was first introduced to the power of compounding by my economics professor in college.
Later, this same man became my mentor and gave me my first job in the money management industry in 1970. My professor, Alvin F. Terry, created a napkin presentation that not only had a great impact on my impressionable young mind, but also crystallized for me the magic of compounding. I would like to share it with you here as follows:
If you invest $20 a month, or $240 a year, over your average working life, which we will define as 36 years, and earn 10% a year on your money, you would accumulate approximately $80,000 (this presentation takes minor liberties with the math).
On the other hand, if you invest the same $20 a month over the exact same 36 year time frame, but instead of 10% you earn 20% per year, how much would you then accumulate? Of course, intuitively many of his students would answer $160,000, or double the $80,000. However, astute readers understand that because of the geometry of compounding, the actual answer is over $1.5 million, or more than 18 times as much money by earning 20% than you would earn at 10%.
Here is the logic behind the difference utilizing "the Rule of 72.” As everyone in finance is aware, this rule of thumb works like this; divide any rate of return into the number 72 and the answer tells you how many years it takes to double your money. Therefore, 10% divided into 72 means that it takes 7.2 years to double your money.
On the other hand, 20% divided into 72 means it only takes 3.6 years, or half the time to double your money. Since our defined working life is 36 years, if you double your money every 7.2 years by earning 10% ,you will get five doubles (36/7.2=5 doubles) over 36 years.
For illustration purposes let's track our first $1.00 of investment and double it five times which looks like this; $2.00, $4.00, $8.00, $16.00 and finally $32.00. However, doubling your return does not double your money; instead it doubles your doubles. So at a 20% return you will get 10 doubles instead of five (36/3.6=10 doubles) over 36 years.
Carrying this logic out to its final conclusion, adding five doubles to your original dollar invested looks like this: $64.00, $128.00, $256.00, $512.00 and finally $1024.00. So for perspective, the first dollar you invested grew into $1024 by earning 20%, or 32 times as much as it would have earned at half the rate of 10%.
Herein lies the power of compounding, and herein lies the insight as to why a faster growing company is worth more than a slower growing company. If you had two companies where one grew 10% per year while the other grew at 20% per year, it's obvious that the 20% grower would generate a significantly larger stream of income with which to discount back to present value. In other words, its future value would be worth a whole lot more.
The following two graphs and associated performance charts provide real-life examples of two companies, one historically growing earnings at 10% (10.9% - purple circle) and one historically growing earnings at 20% (21.4% - purple circle) over 22 years, the longest period of time that our F.A.S.T. Graphs™ have available. Note how the total annualized returns for both companies closely correlate to their earnings growth rates.

Abbott Labs 10% Earnings Growth Price Correlated to Earnings Plus Performance

Abbott Labs 10% Earnings Growth Price Correlated to Earnings Plus Performance

Stryker Corp. 20% Earnings Growth Price Correlated to Earnings Plus Performance

Stryker Corp. 20% Earnings Growth Price Correlated to Earnings Plus Performance

Conclusions

This first article in our series of articles on how to know when and why to buy or sell a business laid down a foundation of principles that future articles will be built upon. It's important that readers understand that our discussions are predicated on investing in businesses rather than trading stocks.
One of our primary goals is to help investors avoid obvious mistakes. We define these as erroneous decisions that can, and should be, avoided by investors. In other words, investors should be able to avoid selling a stock for significantly less than its True Worth™, or perhaps even worse, paying significantly more than the stock is truly worth.
At the end of the day, it comes down to understanding and calculating intrinsic value based on fundamentals. We're not suggesting a method for perfect market timing, which as we previously stated we believe to be an impossible objective. Instead, the methods we will be presenting are designed to help investors think their way through the research process and make sound fundamental decisions, rather than impossible perfect ones based on market timing.
Although the methods for valuing a business are based upon similar economic and mathematical principles, not all companies can be valued identically. This offers a clue to the importance of compounding and why it was discussed in this introductory piece. In future articles we will focus on how to calculate sound value for three categories of companies.
We will look at how to value low growth companies, moderate growth companies and high growth companies. Once again, although the formulas for valuing these companies are all based on cash flows (earnings), adjustments and calibrations will be applied to accommodate each category.
Utilizing our EDMP F.A.S.T. Graphs™ we will provide real-world evidence that validates the valuation methodologies applied. In other words, we will show how these valuations work with real world examples. We will also provide segments on various types of dividend paying stocks to include utilities, REITS, MLPs, etc. For clarity and simplicity we intend to offer a separate article on each class. Therefore, we hope that readers will be provided a solid framework that can assist them in researching potential investments in common stocks of various categories.
Tune in to our next series where we will cover how to value utility stocks, a category that typically has low but stable earnings growth and moderate to high dividend yield. Investors interested in dividend income should find this next article of great interest.
The opinions in this document are for informational and educational purposes only and should not be construed as a recommendation to buy or sell the stocks mentioned or to solicit transactions or clients. Past performance of the companies discussed may not continue and the companies may not achieve the earnings growth as predicted. The information in this document is believed to be accurate, but under no circumstances should a person act upon the information contained within. We do not recommend that anyone act upon any investment information without first consulting an investment advisor as to the suitability of such investments for his specific situation.
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“I appreciate your work, Chuck. As a subscriber to FAST Graphs™, I use the tool to decide on whether to purchase additional shares of what I currently hold or to add a new holding. Your articles help me make full use of the tool and give other readers valuable information, if they take the time to learn. One of the biggest enhancements that I use is the FFO data added for MLPs and REITs.”


“When FAST Graphs™ were unavailable because of Hurricane Sandy, I realized how much I need them in order to make investment decisions.

(Wish I could be) Long FAST Graphs!!!”


“One more vote for the value of FAST Graphs™; just started a subscription to Chuck's great service (premium), and am having a ball analyzing so many stocks quickly.”


“I feel very ill-equipped to make investment decisions without Fast Graphs. :-)”


“Yesterday, I signed up for your F.A.S.T. Graphs™. It's a really amazing, valuable tool for checking over/undervaluation of stocks. Wish I had it years and years ago!!”


“Love the F.A.S.T. Graphs™: One glance and you know a whole lot.”


“About Chuck's F.A.S.T. Graphs™: They are invaluable to me in making decisions about the stocks I own (in addition to what you are saying about doing other research) and the ones I hope to own in the future.”


"Chuck -- Your proprietary F.A.S.T. Graphs™ are a VERY impressive tool!"


“If there were an Investor Hall of Fame for people who have helped others with their investing, and sharing valuable information, you and your F.A.S.T. Graphs™ would get one of my selections.”


“I love Chuck's F.A.S.T. Graphs™! Well worth the price of admission for what he gives you.”


"Chuck - Thank you for your well thought out articles. I tend to be a visual type of person so I really appreciate the F.A.S.T. Graphs™ approach."


"Great article, as always! I always look forward to your articles, and am especially eagerly awaiting your next in this series. I find the F.A.S.T. Graphs™ extremely helpful."


“Your F.A.S.T. Graphs™ put all of this in a single artful picture and the accompanying spreadsheets hammer home the point.”


“I use the F.A.S.T. Graphs™ method to evaluate all of my ideas. I recommend it for individual investors, since it helps them focus on data and get past the many emotional arguments.”


“I recently subscribed to the F.A.S.T. Graphs™, and these articles are helping me learn how to better use them. They really do give you a good quick look at the valuations picture. A much needed tool!”


“I also always appreciate the clear-cut information provided through your F.A.S.T. Graphs™ and articles.”


“Thanks, Chuck, for your F.A.S.T. Graphs™. Each of these graphs is worth 1,000 words in describing a company's growth, consistency and valuation. Thanks for sharing your graphs.”


“Thanks, Chuck. Love the F.A.S.T. Graphs™! It makes investing so much more clear.”


“Chuck's F.A.S.T. Graphs™: They are invaluable to me in making decisions about the stocks I own (in addition to what you are saying about doing other research) and the ones I hope to own in the future.”


”I am amazed at the usefulness of your F.A.S.T. Graphs™ and I plan on using them for a long time to come.”


“Chuck's F.A.S.T. Graphs™ will give you a tool to find those well chosen stocks...”


“Thanks for the F.A.S.T. Graphs™, Chuck. They are the best tool I've used.”