Joel Greenblatt: Gotham Capital, the Magic Formula, and the Hedge Fund Manager Who Walked Away at 37

In January 1995, in a small office in midtown Manhattan, a thirty-seven-year-old hedge fund manager named Joel Greenblatt did something that almost no successful hedge fund manager has ever done. He returned five hundred million dollars of outside investor capital. He did not return it because the fund was failing. The fund had compounded at approximately fifty percent annually before fees, and approximately thirty percent annually net to investors, for ten consecutive years. Seven million dollars of starting capital had grown into a portfolio worth several hundred million. He did not return it because the strategy had stopped working. The strategy was working better than ever. He returned it because he had decided he no longer wanted the obligation of running other people’s money. He wanted to teach. He wanted to write. He wanted to spend more time with his five children. He wanted, more than anything else, to think about investing without the constant pressure of justifying his thinking to outside capital.

The decision was, in hedge fund culture, almost incomprehensible. The standard career arc of a successful hedge fund manager is exactly the opposite. Success generates capacity to manage more capital, which generates fees, which generates personal wealth, which generates social standing, which generates further capacity. The trajectory points in one direction. It does not bend back on itself. Hedge fund managers do not return capital. They raise more.

Greenblatt did. He sent a letter to his investors explaining that Gotham Capital would close to outside money at the end of the month. He returned every dollar. He kept his own capital, his partner Robert Goldstein’s capital, and a small amount belonging to his closest associates. The fund continued to operate as a family office. The annualised returns continued for the next several decades, but they were no longer reported publicly, no longer marketed to anyone, no longer the subject of any investor newsletter. The most successful hedge fund manager of his generation walked, voluntarily, off the public stage at the age of thirty-seven.

What he did with the next thirty years is, in some ways, more interesting than what he did with the first ten. He started teaching at Columbia Business School as an adjunct professor of value investing. He wrote a book called You Can Be a Stock Market Genius, in which he gave away, for the price of a paperback, the special-situations playbook that had generated his fund’s returns. He wrote a second book called The Little Book That Beats the Market, in which he distilled his entire investment philosophy into a two-variable formula simple enough for a sixth-grader to execute. He co-founded the Value Investors Club, an online forum capped at two hundred and fifty members where serious value investors share research. He launched a free online stock screener that anyone in the world could use to implement his Magic Formula. He spent, in summary, the second half of his career systematically dismantling the information asymmetry that had made the first half of his career possible.

This is unusual. Most successful investors guard their methods carefully. Renaissance Technologies has never published its strategies. Warren Buffett’s letters are deliberately vague about specific holdings. Most hedge fund managers operate on the assumption that their alpha is fragile and would erode if widely shared. Greenblatt operated on the opposite assumption: that his alpha was durable precisely because most investors would not have the temperament to follow a published strategy through the periods in which it appeared not to work. The edge, he argued, was not in the knowledge. It was in the discipline. Sharing the knowledge did not destroy the edge. It revealed who actually had the discipline.

The episode you are about to hear is the story of how a Great Neck high-school student who fell in love with Benjamin Graham’s The Intelligent Investor grew up to become one of the most successful, most generous, and most quietly influential investors of his generation. It is also a story about what it actually takes to compound capital at fifty percent a year for a decade, and why the answer turns out to be considerably less mysterious than the financial press usually pretends.

Great Neck, Wharton, and the Stanford Law Detour

Joel Greenblatt was born on the thirteenth of December, 1957, in Great Neck, New York, an affluent Long Island suburb populated largely by professional families with strong educational expectations for their children. His parents were upper-middle-class. His father was a businessman. The household was Jewish, observant, and academically intense. Joel and his siblings attended Great Neck North High School, one of the highest-performing public schools in the United States.

The pivotal moment in Greenblatt’s intellectual life, in his later telling, was the day in his junior year of high school when he picked up a copy of Benjamin Graham’s The Intelligent Investor in the local public library. Graham, the Columbia professor who had codified value investing in the 1930s and forties and who had personally taught Warren Buffett at Columbia Business School, was the foundational figure of the entire value-investing tradition. The book argued, with considerable rigour, that the stock market was not, as efficient-market theorists would later claim, a perfectly priced reflection of underlying corporate value. It was a manic-depressive auction in which prices regularly diverged from underlying intrinsic value, and the disciplined investor could profit by buying when prices were below value and waiting patiently for the divergence to close. Greenblatt, then sixteen, found in Graham’s book a framework for the markets that made intuitive sense in a way that nothing else he had read about finance did.

He went to the Wharton School at the University of Pennsylvania in 1975, completing his Bachelor of Science in finance summa cum laude in 1979. He stayed at Wharton for his Master of Business Administration, which he completed in 1980. While still a student he co-wrote, with Rich Pzena and Bruce Newberg, a paper titled How the Small Investor Can Beat the Market, which was published in the Journal of Portfolio Management. The paper, which used historical-data tests to demonstrate that simple value-investing rules could systematically outperform the broader market, was a remarkable academic achievement for a graduate student. It also contained, in early form, the intellectual seeds of what would later become the Magic Formula.

After Wharton, Greenblatt enrolled at Stanford Law School, on the assumption that a legal degree would broaden his options in the financial industry. He lasted exactly one year. The detail he would later cite for leaving was that the work bored him in a way that finance did not. He withdrew from the program in 1981 and moved back to New York, where he took a position at a small Wall Street risk-arbitrage firm called Halcyon Investments. The firm specialised in special situations, which is to say, the analysis of corporate events such as mergers, acquisitions, spinoffs, recapitalisations, and bankruptcies, where the legal and accounting complexity of the transaction created opportunities for mispricing that ordinary equity analysts were not equipped to identify. Greenblatt spent four years at Halcyon learning the special-situations business in detail. By 1985 he was twenty-seven years old and ready to start his own firm.

The Milken Cheque and the Founding of Gotham Capital

In 1985, with the support of his Halcyon colleagues and a chance personal connection to Michael Milken, the junk-bond king then operating out of Drexel Burnham Lambert’s Beverly Hills office, Greenblatt raised seven million dollars in seed capital and founded Gotham Capital. Most of the seven million came from Milken personally. The connection has been documented but is not well-known outside the value-investing community. Milken, in the mid-eighties, was at the height of his influence and was known for funding talented young investors with idiosyncratic ideas, particularly those whose strategies complemented his own work in the high-yield-debt market. Greenblatt’s special-situations focus, with its concentration on corporate restructurings and spinoffs that were often capitalised through Drexel-issued debt, fit Milken’s investment universe naturally. Milken backed Greenblatt at twenty-seven on the basis of his Wharton record, his Halcyon experience, and a few hours of conversation about the structural inefficiencies in the special-situations market.

Gotham Capital opened for business in a small office on Forty-Eighth Street in midtown Manhattan. The fund’s mandate was deliberately narrow. It would invest only in special situations, defined narrowly as corporate transactions in which the legal complexity, accounting opacity, or institutional reluctance of traditional buy-and-hold equity managers had produced a structural mispricing. Spinoffs, in which a parent company distributed shares of a subsidiary directly to existing shareholders, were a particular focus. Most institutional holders of the parent company stock either could not hold the spinoff shares for mandate reasons or simply did not want to. They sold immediately, often without regard to the underlying business value of the spun-off entity. The result was that newly spun-off shares often traded at deep discounts to their underlying economic value for several months after the distribution. A patient investor with the analytical capacity to value the spin-off properly could buy at the depressed price, wait for the institutional selling to clear, and capture a substantial mean-reversion return. The strategy was not complicated. It was, however, time-consuming, paperwork-intensive, and structurally unattractive to large institutional managers who needed to deploy capital quickly. The barrier to entry was diligence, not intelligence.

The trade that Greenblatt would later use as a teaching example, in his 1997 book, involved the Marriott Corporation’s 1993 split into two separate companies: Marriott International, which held the operating hotel-management business, and Host Marriott, which held the underlying real estate. The legal and financial structure of the transaction, in which Host Marriott absorbed most of the parent company’s substantial debt while Marriott International received the operating businesses, was designed in a way that made Host Marriott appear, on the surface, to be a structurally weakened entity. Most institutional shareholders of the parent Marriott Corporation, when they received their Host Marriott shares as part of the distribution, sold them immediately. Greenblatt, who had read every page of the spin-off filing carefully, recognised that the Host Marriott assets were considerably more valuable than the market price implied, and that the debt burden, while large, was manageable given the underlying real-estate portfolio. He bought aggressively. The position returned several multiples over the following two years as the market gradually recognised what Greenblatt had recognised at the moment of the distribution.

The Marriott trade was one of dozens of similar special-situations trades Gotham Capital executed over the 1985 to 1994 period. The aggregate result was an annualised return of approximately fifty percent before fees and approximately thirty percent net to investors over a ten-year period. Seven million dollars of starting capital, after fees and partner distributions, had grown into a portfolio worth approximately five hundred million by the end of 1994. Greenblatt’s personal share of the fund’s economics had made him, at thirty-seven, independently wealthy.

The Decision to Return Capital

The decision to close Gotham Capital to outside investors at the start of 1995 has been described, by Greenblatt himself in subsequent interviews, in considerably less dramatic terms than the financial press has tended to use. He has said, in various forms, that the fund had become large enough to satisfy his and his partners’ financial needs for the foreseeable future. He has said that the obligation of explaining his thinking to outside investors had begun to interfere with the quality of his thinking. He has said that he wanted to spend more time with his five young children. He has said that he wanted to teach. None of these reasons, in his telling, was the dominant one. All of them were present.

The structural insight that the decision encoded, however, is worth naming directly. Active management of outside capital, beyond a certain scale and beyond a certain duration, generates a set of obligations that are independent of the underlying investment work. The obligation to communicate with investors, to defend the strategy during periods of underperformance, to manage the firm’s distribution channel, to navigate the regulatory environment, to respond to redemption requests during stressful periods, to maintain the marketing apparatus that justifies the fees. These obligations are real, they are time-consuming, and they tend to grow over time in ways that are not proportional to the underlying investment-quality improvements they enable. The hedge-fund-management track is therefore structurally biased, beyond a certain point, toward the production of fees rather than the production of returns. Greenblatt, having reached the point at which the obligations were beginning to dominate the work, simply opted out.

The post-nineteen-ninety-five years became, in some ways, the most productive of his career. Freed from the obligation of explaining himself to outside capital, he could think about investment problems for as long as he wanted, in whatever direction the analysis pointed, without quarterly performance pressure. He took the adjunct position at Columbia Business School in 1996 and began teaching value investing to graduate students. The course, called Value and Special Situation Investing, became one of the most prestigious electives in the Columbia MBA program. He has continued to teach it, with various co-instructors, for over twenty-five years. Some of the students who passed through his classroom in those years became, in their own right, well-known investors: Bill Ackman of Pershing Square, Joel Tillinghast of Fidelity, and others.

You Can Be a Stock Market Genius and the Magic Formula

In 1997, Greenblatt published his first book, You Can Be a Stock Market Genius. The title, which he has subsequently said he regrets as too gimmicky, was suggested by his publisher in pursuit of mass-market appeal. The book itself was anything but gimmicky. It contained, in detailed prose, the special-situations playbook that Gotham Capital had used to generate its fifty-percent annualised returns over the previous decade. Spinoffs. Risk arbitrage. Bankruptcies. Restructurings. Stub stocks. Recapitalisations. The book explained, in the kind of accessible language that most professional investors do not use when speaking to outsiders, exactly how each of these special-situations categories worked, exactly what kinds of mispricings they generated, exactly how a careful analyst could identify and capture those mispricings. The book was, in effect, a giveaway of an entire investment edge.

The reception in the value-investing community was an interesting mixture of admiration and quiet disapproval. The admiration was for the book’s pedagogical clarity. The disapproval was for the apparent destruction of an entire category of structural alpha. If retail investors, hedge fund managers, and institutional analysts all read Greenblatt’s book and started applying his methods, the spin-off mispricings he had documented would presumably narrow as more sophisticated capital arrived in the market. Greenblatt’s edge, the worry went, would be eroded by his own publication.

The worry was, in retrospect, only partially correct. Spinoff mispricings did narrow somewhat over the following two decades, as more institutional investors developed dedicated spinoff-research capabilities. The narrowing was not, however, complete. The structural conditions that produced the original mispricings, including the index-mandate constraints on institutional holders of the parent companies and the time-consuming due diligence requirements on the new entities, remained largely intact. Sophisticated retail investors who actually read the book, applied its methods, and held positions through the institutional clearing periods continued to capture meaningful returns. The supposed destruction of the edge had not actually happened.

The lesson Greenblatt drew from this episode shaped the rest of his career. The edge in investing, he came to believe, was not in the knowledge of what to do. The knowledge was already widely available. The edge was in the temperament to follow a sound strategy through the periods in which it appeared not to work. This insight informed his second book, published in two thousand and five, called The Little Book That Beats the Market. The book distilled an entire investment philosophy into a two-variable formula. Rank every public company in the United States by earnings yield, defined as operating earnings divided by enterprise value. Rank every public company by return on capital, defined as operating earnings divided by tangible invested capital. Add the two ranks together. Buy the top thirty companies by combined rank. Hold each for one year. Sell at the end of the year. Repeat. The strategy, applied mechanically over the 1988 to two thousand and four backtest period that the book documented, had returned approximately thirty-one percent annualised, against a market return of approximately twelve percent.

“The Magic Formula works because most investors cannot follow a systematic strategy through extended periods of underperformance. They deviate, panic, second-guess, and ultimately abandon the approach precisely when it is about to work best.”
— Joel Greenblatt, in interviews and the introduction to The Little Book That Beats the Market

The book, which Greenblatt deliberately wrote at a sixth-grade reading level using his own children as the test audience, sold over three hundred thousand copies. It was updated and re-released in twenty ten as The Little Book That Still Beats the Market. Greenblatt and his collaborators built a free online stock screener at MagicFormulaInvesting.com that let anyone in the world implement the strategy without paying a fee. The implementation, as Greenblatt had predicted, did not destroy the edge. Most investors who started the strategy abandoned it within two or three years, typically during a period of underperformance, and never came back. Those who held it for a decade or longer captured returns close to those documented in the book.

The Burry Seed and the Value Investors Club

One of the more consequential post-nineteen-ninety-five Gotham investments was the two-thousand seed financing of a small-time value investor named Michael Burry, who would later become famous for his short positions on the subprime mortgage market in two thousand and seven and two thousand and eight. Greenblatt had been impressed by Burry’s writing on the value-investing message board where Burry, then a neurology resident in California, had been posting analyses of public companies in his off hours. In two thousand, Greenblatt and Goldstein invested one million dollars of Gotham’s capital into Burry’s newly founded Scion Capital in exchange for a twenty-five percent stake in the fund’s general partnership. Scion went on to compound capital at a high rate over the following decade, and Gotham’s stake in Scion grew to approximately one hundred million dollars by two thousand and six. The trade is a small footnote in the Burry story, but it illustrates a particular feature of Greenblatt’s career: the willingness to back unconventional talent on the basis of writing samples and analytical quality rather than institutional pedigree.

In the same year, two thousand, Greenblatt co-founded the Value Investors Club with John Petry. The club is an online forum, capped at two hundred and fifty members, where serious value investors share investment research. Membership is by application only and requires the submission of two original investment write-ups that the existing membership votes on. The club awards a five-thousand-dollar prize bi-monthly for the best research submission. Several academic studies have subsequently demonstrated that the club’s collective recommendations generate statistically significant excess returns. The club is, in some sense, a high-trust intellectual community of serious value investors, structured in a way that filters for quality and long-term commitment.

Greenblatt’s other post-nineteen-ninety-five activities have been similarly structured around the production and distribution of high-quality investment thinking. He served on various university and charitable boards. He co-founded Success Academy Charter Schools, the New York City charter-school network that serves predominantly low-income students. He published three additional books over the following decade, each on different aspects of value investing and market structure. He gave talks. He wrote occasional public commentary on market conditions. He stayed, for the most part, out of the financial-television circuit that defines most modern asset-management celebrity.

What We Cannot Know

Greenblatt’s record contains real ambiguities that an honest account must name.

The first concerns the durability of the Gotham returns. The fifty-percent annualised return over 1985 to 1994 was achieved with relatively small assets under management, in a special-situations universe that was structurally less crowded than it became over the subsequent decades. The same strategy, executed at ten times the scale, would not have produced the same returns. The strategy was, in this specific sense, capacity-constrained. Greenblatt’s decision to return outside capital in 1995 was, in part, an acknowledgment of this constraint. His subsequent Gotham Asset Management funds, which he restarted in two thousand and eight with broader mandates and substantially larger asset bases, have produced respectable but not extraordinary returns. The Gotham Large Value Fund, his retail-accessible product, has lagged the S&P five hundred over the most recent five-year period, returning approximately nine percent annually against the index’s twelve percent. The honest framing is that the original Gotham Capital returns reflected a particular combination of strategy, scale, and market environment that has not been replicated at larger scale or in subsequent decades.

The second concerns the Magic Formula’s post-publication performance. The original Greenblatt backtest period, 1988 to two thousand and four, showed an annualised return of approximately thirty-one percent. Subsequent backtests over the post-publication period have shown considerably more modest returns. From two thousand to twenty twenty-four, depending on the specific implementation methodology, the formula has generated approximately twenty percent annualised returns, still well above the market but materially below the original published numbers. Some of the gap is explained by the formula’s more recent tendency to select riskier value traps rather than genuine bargains. Some of it is explained by the broader twenty-tens environment, in which growth equities dominated value equities for over a decade. Whether the formula’s recent underperformance reflects a permanent erosion of the strategy or a temporary cyclical headwind is genuinely contested in the academic literature.

The third concerns the Milken connection. The seven-million-dollar seed capital that funded Gotham Capital’s 1985 launch came primarily from Michael Milken, the junk-bond king who would, several years later, plead guilty to multiple securities-fraud charges and serve federal prison time. The connection is well-documented but rarely discussed in the financial-press hagiographies of Greenblatt’s career. There is no evidence that Greenblatt himself was involved in any of the Milken-related improprieties, and the Gotham fund’s own investment activities were never the subject of any regulatory action. The Milken connection nonetheless raises a question that the value-investing community has not always been comfortable confronting: how much of Greenblatt’s early success was structural, in the sense of his analytical work on special situations, and how much of it was relational, in the sense of his access to deal flow and information through the Drexel network. The honest answer is probably that the analytical work was the dominant factor, but the network was non-trivial, and a careful biographer would not pretend otherwise.

The fourth concerns the post-Gotham legacy. Greenblatt is, by the consensus of his peers, one of the most influential value-investing teachers of his generation. The students who passed through his Columbia courses include some of the most successful investors of the subsequent two decades. His books have shaped the thinking of millions of retail investors. His Magic Formula screener has been used by an unknown but probably very large number of individual portfolios. The legacy is real. Whether it has had the desired effect on actual investor outcomes is harder to say. The discipline that the strategy requires, as Greenblatt himself has acknowledged repeatedly, is rare. Most retail investors who have started using the formula have abandoned it within a few years. The aggregate dollar-weighted impact on retail-investor wealth, if it could be measured, would likely be considerably more modest than the strategy’s underlying time-weighted returns would suggest.

What Greenblatt Teaches: Four Lessons in Order of Depth

1. The most important lesson is structural: the edge in investing is not in the knowledge but in the discipline to apply the knowledge through the periods in which it appears not to work. Greenblatt’s defining insight, applied repeatedly across his three decades of public teaching, is that information asymmetry is no longer the primary source of investment edge. Almost any value-investing strategy that works has been documented somewhere in print, often by Greenblatt himself. The edge is therefore not in the knowledge. It is in the temperamental capacity to follow a sound strategy through the periods, sometimes lasting years, in which it appears to be losing money. The retail trader’s analogue is exact. If your trading strategy is sound, the edge is not in the strategy. It is in the discipline to execute the strategy when your equity curve is in drawdown, when your peers are reporting better returns from a different approach, when the market is rewarding the opposite style. Most traders abandon sound strategies during exactly these periods. The traders who do not are the ones who eventually capture the strategy’s full long-term returns.

2. The deeper lesson is structural in a different way: capacity constraints are real, and the willingness to refuse capacity is itself a form of edge. Greenblatt’s decision in 1995 to return five hundred million dollars of outside capital was, by the standards of hedge-fund career trajectory, almost incomprehensible. It was also strategically correct. The Gotham strategy was capacity-constrained. Continuing to grow assets under management would have eroded returns. Refusing additional capital was the only way to preserve the strategy’s quality. The retail trader’s version of this lesson is more modest but structurally identical. The position size that worked at one level of account capital may not work at ten times that level. The strategy that compounded a small account may not scale to a larger account. The discipline to recognise when scale is hurting performance, and to refuse the additional size that the strategy cannot absorb, is itself a form of edge that most traders do not develop until they have already lost money trying to scale beyond capacity.

3. The deeper lesson still is intellectual: special situations are a permanent feature of public markets, and the patient analyst who actually reads the filings will continue to find mispricings that ordinary investors cannot. Greenblatt’s special-situations playbook from You Can Be a Stock Market Genius, written in 1997, continues to work in the twenty twenties because the structural conditions that produce the mispricings have not changed. Index funds still cannot hold spinoff shares that fall outside their mandates. Institutional analysts still cannot afford the time required to read every spinoff filing. The supply of new spinoffs, recapitalisations, and bankruptcy emergences continues at roughly the historical rate. The retail trader who is willing to do the work, read the documents, and act on the analysis when the mispricing presents itself continues to have access to a category of edge that is not available to anyone who is not willing to do the work. The willingness is rare. That is precisely what makes the edge persist.

4. The deepest lesson is moral: the obligation to share what you know is part of the work. Greenblatt’s approach to teaching, writing, and the Value Investors Club has been to give away, deliberately and publicly, the methods that produced his returns. This is unusual in his industry. The standard hedge-fund posture is that methods are proprietary, that disclosure erodes alpha, that the manager’s edge is fragile and must be protected. Greenblatt has taken the opposite position throughout his career, and the durability of his record over four decades suggests that his position is correct. The retail trader’s version of the lesson is that the trader who teaches their methods, who writes about their thinking, who participates in serious discussion communities, generally develops faster and learns more than the trader who keeps everything close. Investing is a craft that improves through articulation. The articulation requires an audience. The audience requires generosity with what you have learned. Greenblatt has spent thirty years demonstrating, at the highest level of the profession, that the generosity is not a tax on the edge. It is part of the edge.

Frequently Asked Questions

Why did Joel Greenblatt return outside capital in 1995?

Greenblatt has said in subsequent interviews that the decision was driven by several factors: the fund had already grown large enough to satisfy his and his partners’ financial needs; the obligation of communicating with outside investors had begun to interfere with the quality of his investment thinking; he wanted to spend more time with his five young children; and he wanted to teach and write. The strategy was capacity-constrained, and refusing additional capital was the only way to preserve its quality. He returned approximately $500 million to outside investors in January 1995 and converted Gotham Capital into a family office.

What was the Magic Formula?

The Magic Formula is a two-variable mechanical investment strategy Greenblatt published in his 2005 book The Little Book That Beats the Market. The strategy ranks every U.S. public company by earnings yield (operating earnings divided by enterprise value) and by return on capital (operating earnings divided by tangible invested capital). The two ranks are summed. The investor buys the top 30 companies by combined rank, holds each for one year, and repeats. Greenblatt’s published backtest from 1988 to 2004 showed approximately 31% annualised returns against a market return of approximately 12%.

What were Gotham Capital’s actual returns?

Approximately 50% annualised before fees and approximately 30% annualised net to outside investors, over the ten-year period from 1985 to 1994. The fund started with $7 million in seed capital, primarily from Michael Milken, and grew to approximately $500 million in outside-investor capital by the time Greenblatt returned that capital in January 1995. The 50% pre-fee annualised return is among the highest sustained ten-year returns recorded for any hedge fund, though the fund’s relatively small size during that period made the returns more achievable than they would have been at larger scale.

What is special-situations investing?

Special-situations investing focuses on corporate events that produce structural mispricings. The category includes spinoffs (where a parent company distributes shares of a subsidiary to existing shareholders), risk arbitrage (where a stock trades at a discount to an announced acquisition price), bankruptcies (where the equity of an emerging firm trades below its post-restructuring value), recapitalisations, stub stocks, rights offerings, and various other corporate-action categories. The mispricings are typically caused by institutional constraints on the holders of the underlying securities, who must sell or cannot hold the resulting positions for mandate reasons unrelated to the underlying economic value. Greenblatt’s You Can Be a Stock Market Genius remains the most accessible introduction to the category.

What is the Value Investors Club?

The Value Investors Club is an online research-sharing forum Greenblatt co-founded in 2000 with John Petry. Membership is capped at 250 investors and is by application only. Applicants must submit two original investment write-ups that the existing membership votes on. The club awards a $5,000 prize bi-monthly for the best research submission. Multiple academic studies have demonstrated that the club’s recommendations generate statistically significant excess returns over subsequent market periods.

Did Greenblatt really seed Michael Burry?

Yes. In 2000, Gotham Capital invested approximately $1 million into Michael Burry’s newly founded Scion Capital in exchange for a 25% stake in the fund’s general partnership. Greenblatt had been impressed by Burry’s writing on a value-investing message board, where Burry was posting analyses of public companies during his off hours as a neurology resident. Burry’s subsequent subprime-mortgage short positions in 2007 and 2008 are the central narrative of Michael Lewis’s The Big Short. Gotham’s stake in Scion grew to approximately $100 million by 2006.

How does Greenblatt’s connection to Michael Milken affect his record?

Michael Milken provided most of the $7 million seed capital that launched Gotham Capital in 1985. Milken would later plead guilty to multiple securities-fraud charges and serve federal prison time. Greenblatt himself has never been the subject of any regulatory action, and Gotham Capital’s investment activities were never alleged to have involved any of the Milken-related improprieties. The connection nonetheless raises a question about how much of Greenblatt’s early success reflected analytical work versus access to the Drexel deal-flow network. The honest answer is that the analytical work was the dominant factor but the network was non-trivial.

Has the Magic Formula continued to work after publication?

Partially. Subsequent backtests over the post-publication period have shown approximately 20% annualised returns, well above the broader market but materially below the 31% annualised returns documented in Greenblatt’s original 1988-2004 backtest. Some of the gap reflects the formula’s tendency in recent years to select riskier value traps rather than genuine bargains. Some of it reflects the broader 2010s environment, in which growth equities dominated value equities for over a decade. Whether the recent underperformance reflects a permanent erosion or a temporary cyclical headwind is contested.