PFE and Calculating Sustainable Growth of ROE
Never let it be said that, in this journal of my investing life, I was not prepared to describe my mistakes.
I am, in fact, thinking of Pfizer, which I purchased at $25.46 and $22.96 on March 9, 2007 and February 26, 2008, respectively, for an average price of $24.00. Today, the stock is selling for $17.39 — down around 28%. At the time, it seemed a reasonable purchase (they all do), selling cheaply based on discounted cash flows.
The problem was that, while I teach healthcare management, that doesn’t make me qualified to assess the strength of pharmaceutical products or their pipeline of compounds undergoing research and development.
In short, this stock should have gone into my Too-Hard pile … but it didn’t. In fact, even if my resume included the earned-degrees PharmD and bio-physics Ph.d., I doubt pharmaceutical firms creating patent-protected medications would ever emerge from the Too-Hard box.
Today, the stock is undervalued based on DCF (Discounted Cash Flows). With Lipitor’s expiration looming and the pipeline unimpressive to the market, DCF indicates the stock is undervalued by more than 60% — using a starting value of free cash flows of $15.3 billion, a free cash growth rate of 12.8% (the median of running three- and five-year medians over the past decade), a 5% growth rate for the second decade, a 15% present-value discount rate, and the current $95.56 billion in shareholder’s equity as the continuing value).
Even if basing DCF on Owner’s Earnings, rather than Free Cash Flows, and estimating future growth using sustainable ROE (i.e., normal ROE with dividends subtracted) the stock is selling at a 37.2% discount.
Lengthy Educational Aside That Delays Admission of Dufus Error In Judgment.
At this point, I should stop and, for the sake of explanation and reader education, describe something that hasn’t been put forward with prior postings — this education thing is, after all, one of the reasons for this blog (kind of a “look what I learned at camp” exercise). Specifically, I should explain the concept of sustainable ROE (we will return to PFE as a mistake soon enough).
First, Return on Equity is defined by Investopedia as:
Return on Equity = Net Income/Shareholder’s Equity
Net income is for the full fiscal year (before dividends paid to common stock holders but after dividends to preferred stock.) Shareholder’s equity does not include preferred shares.
ROE can be broken out based on three and five measures, using the Dupont Breakdown. For the three-item version, we have:
Net Income/Sales
Sales/Total Assets
Total Assets/Equity
Note that the first two items are the components of Return on Assets, where Net Income/Sales is the company’s Profit Margin and Sales/Total Assets is the Asset Turnover rate. The third item, Total Assets/Equity, represents a measure of the company’s debt and is known as the Equity Multiplier. This means the difference between Return on Assets (ROA) and Return on Equity (ROE) is the multiplier effect of debt.
For Pfizer, we get:
Note that, when I first purchased the stock in 2007, debt was declining and the other two items were stable — even though the Asset Turnover measure was down from 2000. Since then, the Equity Multiplier has increased while Asset Turnover has dropped yet again.
The other breakdown of ROE involves five items:
Tax Burden = Net_Income/Earnings Before Taxes
Interest Burden = Earnings_Before Taxes/Operating Income
Operating Profit = Operating Income/Revenue
Asset Turnover = Revenue/Total Assets
Leverage Ratio = Total Assets/Total Equity
Note that the Leverage Ratio line from this chart and the Equity Multiplier from the previous chart are the same, as is the Asset Turnover line. To make this chart an even more confusing jumble of lines, I’ve added a sixth line for the ROE.
Now, lets turn to the calculation of the Sustainable Growth Rate, which is the rate of growth the company can, theoretically, generate without taking on new debt, securing other capital financing, or delving into savings. Let’s start with the general spreadsheet:
I should note that all dollar figures are in millions.
The portion of the spreadsheet that pertains to Sustainable Growth is this part:
The first thing we need to do is to determine the percentage of free cash flows not distributed as dividends. The company, after all, can only deploy the cash it has available for deployment (before taxes). So, we use the percent of free cash not distributed as dividends:
I’ve provided the calculations, which reads: =IF(B17=0,0,1+(B16/B17)). This is an if-then statement, where the first part forces a zero response if the denominator in the subsequent equation is zero. The meat of the equation is: 1+(B16/B17). This has the effect of identifying the percentage dividends paid out of free cash, which is then subtracted from 1 (100%). In other words, this is the percentage of Free Cash Flows left over after dividends are paid.
Because dividends are taken from the Statement of Cash Flows, where dividends paid are always negative numbers, I add the negative percentage of dividends divided by free cash flows to 1 (100%). I could have calculated this as 1-(-1*(B16/B17)), but that would have been less elegant (which is computer-geek-speak for “needlessly complex”).
The rest of this is really very straight forward.
Specifically, just multiply ROE by the percent of free cash retained by the company.
By the way, you can do the same for ROA, but, instead of Sustainable ROE, this is known as the Internal Growth Rate. Why? Well, recall that the difference between ROA and ROE is the equity multiplier … i.e., debt … and debt represents external capital financing.
Note that, for companies with absolutely no debt, ROE and ROA will be the same. AND, for companies that pay no dividends, sustainable growth will be no different than ROE, just as internal growth will be no different than ROA when no dividends are paid. In the case of Pfizer, there is a difference for both:
Recognizing this distinction between ROE and ROA, on the one hand, and Sustainable Growth and Internal Growth, on the other hand, is important. It implies that ROA and ROE are important measures when trying to determine the benefits accruing to the stockholder. But, if viewing ROA and ROE from the perspective of the company, Sustainable and Internal Growth are the better measures.
Personally, I am more concerned with the company’s future growth than with the dividends paid to me as the stockholder. If the company can grow and generate results at rates greater than I can produce with other investments, that is my preference.
Indeed, most companies can more easily generate superior results because they have a headstart of between 15% and 35% (the tax hit I confront when selling the stock or receiving dividends). In fact, the company’s head start is even more pronounced because it can invest profits toward future growth before paying taxes on those profits. Add to this the miracle of compounding, and that head start is so pronounced that I stand a snowball’s chance in hell if hoping to easily find a superior investment alternative when the market is fairly valued or over valued. It is only if the company can not generate productive returns at rates exceeding the norm (net of my tax hit) that paying a dividend benefits me, as the stockholder.
This is a recognition that appears to befuddle many investors. On the online message boards, someone is bound to argue that management should pay a dividend or increase the dividend or repurchase shares as a way to improve the stock’s price. Rarely do they consider the tax implications of their urgings or the impact of share repurchases on the company’s profitability and growth prospects over time.
Even if I plan to sell the stock in a year or two, I want the company to think and plan for the long-term — to act as though none of its stockholders will ever sell. Why? Eventually, the market tends to give a premium value to those companies possessing substantial promise for decades to come, while, conversely, the market discounts the value of companies that manage their investments as if they are to be sold tomorrow.
This is different from the conventional wisdom, of course, but think about the price demanded for the strongest firms — those with the most consistent returns and strongest reputations. The price of JNJ may decline short-term if posting less than consensus results, but the price is unlikely to tank to the same degree as for firms with less-reliable or suspect prospects.
On the other hand, it may be imagined that the stock will sell at a higher price if the market anticipates that the company is for sale — expecting that an acquiring firm will pay a premium of around 20% or more. That 20%, however, is a pittance compared to the compounded growth that quality companies can generate when reinvesting profits to the benefit of the owners. It is only when the company is unable to do this and has an excess of cash (more than it can productively use) that paying a dividend or repurchasing shares makes sense for the owner.
So, when I decide to sell a stock, I want the market to pay an exceedingly dear premium for my wisdom in selecting excellence, and I want to sell at a profit sufficient to compensate me for the tax hit and market risk. Selling, therefore, at a 10% or 15% profit falls short of that mark, and, if the company is bought out at a 20% premium, that 20% is barely enough to compensate me as the owner, after factoring in the capital gains taxes, the market risks, and my subsequent obligation of finding another investment that can generate an adequate and reliable return on my investment. Great investment ideas are not so plentiful that being bought out for a 20% gain makes we weep with joy.
Perhaps a different perspective will prove helpful. If inflation is expected to run at around 4% or 5% over the coming decade (due to increased deficit spending by government) and yearly market risk comes in at 6.8 percent, my minimum required rate of return is around 12%. Add to this the risks associated with opportunity costs (the risk that I won’t be able to find another opportunity), and that increases my required rate of return to somewhere between 15% and 17%, depending on whether the market under-, fairly-, or over-valued. If receiving a 20% premium over the current market price for the stock (the price at which I could sell regardless of whether the company is bought by an acquiring firm), my gain is just 17% after taxes (assuming a 15% capital gains tax).
In other words, my required rate and the return received are the same — making me agnostic on the acquisition. If my acquired company is truly excellent, my agnosticism turns to angst — which is how I felt when NOV acquired Grant Pride Co several years ago. Grant (which I owned) was a wonderful company (the financial ratios and performance were clear on this), while NOV was bigger but not nearly as impressive. To be fair, NOV paid a 30% premium for Grant, but Grant was so good that I couldn’t help wonder whether I was being under compensated. And, when NOV’s stock shot-up after the deal went through, my suspicions seemed confirmed. Pleasantly, the deal was a combination of cash and stock, so I benefited from my newly-received NOV shares (a lucky break that had nothing to do with my skill as an investor).
By the way, all of this is different from conventional value-investing, where the lion-share of price appreciation is derived from having bought at a discount on the front end. Buffett, however, seems to hold this same perspective — given his penchant for buying and holding long-term, preferring companies with well-defined and defensible moats, and his willingness to pay a fair price for an excellent company.
Back to My Mistake With Pfizer
Of course, I started this aside (tangent discussion above) just to note that DCF analysis can be based on other measures than discounting free cash flows, only. This is something I learned from Bill Ellard, who I met on the AEO Yahoo Finance! board. Bill didn’t suggest this specific approach (for good or ill, I came up with the idea of using owner’s earnings and the concept of Sustainable Growth and Internal Growth were pulled from an old business school text). Nevertheless, it is interesting to note that Pfizer’s ROE and ROA have been declining over the past decade, and that the portion redeployable by the company has so eaten into the results that fostering future growth from such meager returns is questionable … sort of.
In the case of Pfizer, the company has a reasonable cash stockpile from prior years:
This indicates that 28 cents per share is in cash, versus a little less than 80 cents paid out in dividends. This means that dividends are primarily paid out of free cash flows. This is a positive, in that the company is not depleting accumulated cash to pay dividends (the dividend would be suspect if that were the case), but it does raise concerns for dividend sustainability in a post-Lipitor world. The company, however, has been taking steps to diversify its product mix through mergers and acquisitions, even if internally-generated growth through its new-products pipeline has been uncertain.
And that is why my earlier purchase of Pfizer was a mistake. Simply put, I didn’t know what I was buying when it came to the research and development pipeline. Yes, the company is strong financially. Yes, the company’s history is impressive. Yes, it has sufficient size to pay a premium to purchase competitors and sustain itself while its researchers search for the next break-through. But, at the end of the day, pharmaceutical companies are like financial institutions. The investor is gambling on success without sufficient information on which to estimate the company’s long-term prospects.
Now, this is really interesting on a number of fronts.
Buffett has argued that he wants to have an excellent feel for where the company will be in 20 years. For pharmaceutical firms, this is not possible. Patent protection lasts 20 years, and, since the company must file for patent protection when first identifying a new chemical compound for testing, by the time lab research, animal testing, human clinical trials, and the FDA approval process are completed, the viable life of the resultant product is just 5 years or less.
Buffett, however, owns Pfizer. Huh? Warren must have a crystal ball.
Moreover, as noted in earlier postings (especially, one generated for Joe Ponzio’s FWallStreet), I argued that investing in financial firms is speculative because the investor has no means of judging the portfolio of loans and investments undertaken by financial firms (banks, investment banks, and insurance). There simply isn’t sufficient granularity to make an informed investment decision. This isn’t just my opinion, no less than Benjamin Graham agreed in, both, Security Analysis and the Intelligent Investor, and the consultant-authors of Valuation at McKinsey and Company have found no recent approach to overcome this problem. Consequently, I have never invested in a financial firm.
Well, the same problem exists with pharmaceutical companies, because the investor has no means of determining the future prospects of R&D initiatives. Think about all of the promising “blockbusters” that have failed to meet their targeted end-points during stage III trials. Think of those that have been denied FDA approval. And think of those which have earned blackbox warnings after FDA approval. Terrorist attacks and natural disasters do not show up with the same frequency. We’ve had fewer than 5 acts of terrorism over the last 20 years, average 11 hurricanes yearly (most fail to generate catastrophic claims at category 4 or 5), and there have been fewer than five earthquakes in the US over the past two decades, but the same may not be said of the hoped-for “blockbusters” than weren’t.
Now, this is appreciably different from the generics — which piggy-back on the brilliance of others (and they will soon be the beneficiaries of Pfizer’s Lipitor). Indeed, we are all the beneficiaries of pharma’s efforts, but, as an individual investor, I’m pleased that I plunked down just $2 thousand on Pfizer (a relatively small percentage), and, as a value investor, I won’t be making this mistake in the future. Pharma, candidly, can experiment on another’s dime.
Of course, you may argue that with R&D-intensive companies increased risk produces increased rewards. This, however, is not an immutable law of physics. Risk and reward are not balanced if playing blackjack at the Sands in Vegas. The rewards are decidedly insufficient to support playing Russian Roulette (even if doing so in Hawaii) or having unprotected coitus with a partner of suspect affections. And there is nothing about pharmaceutical R&D that guarantees a favorable balance between risk and reward for the investor. In fact, the buying and selling of equities is, in most cases, a zero-sum-game, where one side pays too much or buys at a bargain and the other side receives a premium on the sale or sells prematurely.
Finally, I would be remiss if not noting that, after passage of healthcare reform legislation, Pharma is one of the few groups potentially benefiting from its enactment. In fact, Pharma has benefited from the no-negotiations and anti-reimportation policies of the federal government (in the US). Some have argued that this is a mistake, but, given the speculative and unreliable aspects of generating novel therapeutics, both make abundant good sense to me. Opponents of both policies should be asked how many medical breakthroughs they have produced in their working careers and impolitely told to “shut up” if the number is zero.
For me, however, investing is not gambling; otherwise, my wife would never allow it. It is about buying fractional ownership of real companies when they are selling at a discount, and selling when the buyer is prepared to pay handsomely. With Pfizer, I violated that tenet on the front-end, and, unable to value the company today, the decision to sell is equally difficult. If unable to value a company, the investor can be taken when buying AND selling and, given the dilutive effects of inflation during the interim, can be taken while holding a stock he hasn’t valued with reasonable accuracy.








I wonder why you used a FCF growth rate of 12.6% (quite high for any companies standards) when you already acknowledged that the Lipitor patent is expiring. This may cost them well over $1B a year. How do you expect them to replace Lipitor? I believe this was your main mistake in purchasing PFE is that you over estimated the ease of replacing and growing FCF. I would assume zero growth or 3% (national growth) just to be conservative. I really like your website and hope you take these comments as critical in purely a learning way.
Adam
March 31, 2010 at 6:38 am
Adam,
Thank you for the note, and please know that no offense was taken.
The purpose of this blog is to share ideas (something which is underappreciated and undervalued, even in domains as complex as investing). In the area of medical research, it was once the case that researchers published descriptions of their failures, just as they published descriptions of their successes. By publishing their failures, they prevented other researchers from heading down unfruitful paths, and this had the effect of propelling the advance of medical science at a faster pace.
Perhaps the most beneficial aspect of Warren Buffett in recent years is his willingness to exercise, in public interviews, the abundant candor for which he is rightly revered in his Chairman’s Letters to Stockholders. In them (both, interviews and Chairman’s Letters), he is forthcoming when describing the mistakes and the successes of his prior investment choices. Beyond recognizing that candor is a virtue, it provides abundant precedent, supporting openness by others to admit their mistakes, allowing the broader community of investors to learn from the experience of peers.
This openness suits me (personally), because I have long held this to be of central importance in my teaching – describing, both, successes and mistakes in my professional life, hoping that these stories/metaphors will advance the cause for which my students pay tuition. When it comes to investing, this blog takes on a marginally different character, in that I enjoy the benefit of having received a worthwhile graduate education in the subject, and this produces two results. First, when I make a mistake, it tends to be more boneheaded and complex (making the description of it, potentially, more productive for the reader). Secondly, it allows me to present ideas and concepts that the average investor is unlikely to have encountered – the example in this piece is the treatment of adjustments to ROA and ROE. Perhaps it is delusional to assume the average investor has not encountered these, but that is the operative assumption, nevertheless.
Your comments notwithstanding, I remain persuaded that investing in pharmaceutical stocks (specifically, companies producing novel therapeutics) constitutes a “shot in the dark.” Of course, I was aware of the Lipitor patent expiration, since it was prominently listed in the public filings of Pfizer. My assumption at the time of investment was that the company possesses sufficient retained earnings to, either, invest in the next breakthrough or, alternatively, overcome the loss of Lipitor revenue contributions through mergers and acquisitions. This has, to a certain degree, taken place with recent acquisitions. Nevertheless, it is, in my judgment, next to impossible to anticipate the performance of pharmaceutical firms over the extended period described by Mr. Buffett.
Allow me, therefore, to reference this article by Richard Gibbons for the Motley Fool: http://www.fool.com/investing/value/2008/05/19/buffett-proclaims-his-ignorance.aspx
In it, he describes a recent question and answer session between Mr. Buffett and Berkshire stockholders:
“One questioner asked how Buffett values the pipelines of pharmaceutical companies — a great query. When a drug loses patent protection, generic competition typically swoops in with cheap copies, potentially reducing sales of that drug by billions of dollars overnight. As a result, drug companies have to constantly nurture a pipeline of new drugs. From this pipeline, the next blockbuster must arise in order to maintain and grow the company’s revenue.”
“What’s more, Buffett clearly likes the pharmaceutical businesses. Berkshire has stakes in GlaxoSmithKline (NYSE: GSK), Johnson & Johnson (NYSE: JNJ), and Sanofi-Aventis (NYSE: SNY) — three huge drug companies.”
“So Buffett’s answer — that he doesn’t really know the potential of the pipelines of the drug companies in which he’s invested — was remarkable.”
Now, I quote this section in order to demonstrate that we are comparing apples to apples – i.e., the subject and thrust are the same.
Later in the article, Gibbons argues that Buffett feels comfortable investing in pharmaceutical companies because (quoting Mr. Gibbons):
1. He’s a long-term investor.
2. He likes to own excellent businesses.
3. He wants easy decisions.
He provides this as the opening salvo in his defense of Mr. Buffett, writing subsequently:
“Buffett is aiming to hold forever, not gamble on whether or not some drug in the pipeline will be approved. He’s looking for excellent businesses with sustainable competitive positions. The question for Buffett isn’t whether there’s a great drug in the pipeline; it’s whether huge pharmaceutical companies are excellent businesses in the first place.”
“Buffett thinks they are. Big drug firms have piles of cash that allow them to develop or buy new medications. They have the resources, expertise, and contacts to shepherd attractive drugs through trials and gain approval by the FDA. Once a drug is approved, a patent gives a company a monopoly on a product that can save someone’s life. It’s hard to imagine a business with greater pricing power. And that matters far more than pipelines.”
Now, this strikes me as an abundant exercise in conjecture. It would be unfair to hold Mr. Buffett accountable for off-the-cuff comments, just as it is unfair to assume an understanding of Mr. Buffett’s thinking (as Mr. Gibbons does). So, lacking the space limitations (to say nothing of time limitations) confronted by Mr. Gibbons in his published articles, let’s consider Mr. Buffett’s potential logic in its most favorable light – recognizing that we may get it wrong, even as we seek to provide the benefit of the doubt.
It is certainly the case that Mr. Buffett may prefer companies enjoying monopoly power – an attribute commonly associated with patent-protected medications. He may, beyond that, view big pharmaceutical companies as diversified investments – where the company is more than a single medication but is, instead, a portfolio of product offerings. That portfolio of product offerings would, therefore, provide him with a certain degree of protection attributable to diversification. Additionally, large and well established pharmaceutical companies tend to have amassed large stockpiles of capital for, both, R&D investment and M&A investment. All of this, in combination, would allow him to take a longer-term perspective, as Mr. Gibbons asserts, and each of these was, in fact, in my mind when I made my purchase of Pfizer stock.
What Mr. Buffett (and I) failed to recognize at the time were several undermining considerations described in my original piece. Specifically, the shortening period of patent protection, the long lead-in time associated with research and development (laboratory, animal, and human trials, prior to the FDA approval process), and, as always, the uncertainties associated with a company so reliant on the predictable and repetitive production of human brilliance. Each of these, singularly and in combination, substantially reduce the company’s margin of safety. Indeed, any product whose predictable life extends no further than five years, makes consideration of the company beyond that time frame a wager on the unknown and unpredictable.
This is important when considering the investment philosophy of John L. Kelly, who is best known for the Kelly Criterion. The Kelly Criterion identifies the amount a gambler should wager in a game of chance – in Las Vegas or elsewhere. Reduced to its simplest form, the Kelly Criterion is Edge/Odds. When the investor/gambler possesses information concerning the edge of a wager, if that edge exceeds the house odds of winning, the gambler/investor should wagered the percentage advantage implied by that ratio. Claude Shannon, a colleague of Kelly, took this a step further with an equation that this boils down to the pace and reliability of information providing of wagering-advantage. The more information available to the investor/gambling, and the more reliable that information, the greater the edge.
In other words, success in investing relies on the investor’s edge to remove it from the domain of gambling.
Now, apply this to investments and, more specifically, pharmaceutical companies producing novel therapeutics, with all the uncertainties associated with research and development and the FDA approval process – to say nothing of the uncertainties after the product has been approved and confronts the threat of tort liability (if the product, despite these predicate efforts, proves detrimental to patients).
Of course, with every investment there is an element of risk, just as there is an element of risk at the gambling tables. Kelly, however, invented card counting at the blackjack table, and card counting was designed to provide the gambler with an information edge indicating when a significant wager was in the best interest of the gambler. In short, he was attempting to remove gambling from professional exercise of gambling. Unfortunately, this is absent with pharmaceutical stocks, where the end product constitutes a novel, patent-protected medication.
Now, it has been argued that Mr. Buffett uses the Kelly Criterion in his asset allocation decisions, and this may well be the case; although, to the best of my knowledge, he has never confirmed this assertion. He has, however, indicated that he won the lottery by virtue of being born in the United States, where asset allocation skill is disproportionately rewarded in comparison to other times, countries, and cultures. So, if not Kelly, then he must be using some other measure or metric for deciding how much to invest in a given opportunity. Charlie Munger, Mr. Buffett’s business partner, has asserted that, when investing in the stock of Coca-Cola, Berkshire represented something on the order of 25% of the daily Stock purchase volume for weeks. Since Berkshire did not purchase a controlling interest in Coca-Cola, there must have been an upper limit targeted by Mr. Buffett, and the same holds for every other stock investment undertaken by the company, where Mr. Buffett was directing the purchase. In other words, he was doing more than “backing up the truck,” but, rather, was legitimately making asset allocation decisions concerning the number of shares purchased on behalf of Berkshire and, by proxy, its shareholders.
Moreover, as a student of Benjamin Graham, Mr. Buffett requires an identifiable margins of safety, regardless of whether his investment decisions comport with the growth philosophy of Philip Fisher (to whom Mr. Buffett accords credit for as much as 25% of his investment approach). Indeed, the stock of a given company may represent, both, a growth opportunity and a value investment, simultaneously. The two are not mutually exclusive, but, even with growth opportunities, Graham’s margin of safety still applies; even if that margin is a product of the company’s future growth prospects.
Given the uncertainties associated with investing in pharmaceutical companies (those producing novel therapeutics), I am unable to identify (with anything approaching precision or reliability) such a margin of safety. I am, therefore, left to conclude that such investments constitute an exercise in gambling.
In any event, I appreciate the opportunity to further describe my thinking on this subject, and, certainly, you are fully invited to take issue with any of my assertions (above). This blog, by design, seeks to generate an exchange of ideas, and I am appreciative of your willingness to advance my understanding and education on this exceedingly difficult and complex question.
Thanks,
Robert
rcrawford
April 1, 2010 at 10:56 am