Book Review: Stock Market Maestros:

Stock Market Maestros: The Winning Habits, Strategies, and Mindsets of the World’s Best Investors. 2026. Lee Freeman-Shor and Clare Flynn Levy. Harriman House

Replicating the strategies of “the world’s best investors” would logically appear to be a formula for financial success. Proceeding on that premise, here are some pointers, referenced by page number, that readers can glean from Stock Market Maestros, a book consisting primarily of interviews with world-class money managers:

• Don’t rely on sell-side research or attend sell-side idea lunches. (129, 138)
• Seek good ideas at sell-side analysts’ idea meetings. (226)
• Don’t use technical analysis. (45, 88, 111)
• Bear in mind that a significant price decline coupled with heavy volume can signal that it’s time to get out. (40) Note, too, that technical analysis works on small-cap stocks. (25)
• Don’t use price charts or look at 50-day or 200-day moving averages. (147, 235)
• Keep an eye on charts because they influence so many people’s behavior. (155)
• Don’t sell on price spikes. (77)
• Sell part of the position if it’s 100% over its 200-day moving average. (36)
• Don’t use stop losses (77, 100, 111, 242)
• Use “soft stop losses” on the short side. (143)
• Look favorably upon companies that do a lot of bolt-on acquisitions to grow. (167)
• Don’t buy companies that are empire building by acquiring a lot of businesses. (78)
• Hold winners for no more than 15 months. (25)
• An average holding period of eight years is appropriate (46). Holding a company for 14 years can be okay, too. (51)

Do not worry if some of the book’s pointers seem to contradict one another. Authors Lee Freeman-Shor and Clare Flynn Levy note, “While each Maestro brings a distinct style, regional focus, and personality to the table, what unites them is more instructive than what separates them.” First among the unifying concepts they list is, “Execution trumps ideas.”

These top investors’ success had less to do with the stocks they picked than what they did with the stocks after they bought them. In aggregate, only 49% of their ideas proved profitable, with no Maestro achieving a win ratio higher than 57%. The outstanding investors’ excellent performance resulted from making a lot more money on the ideas that worked than they lost on the ones that did not. In their interviews, they describe how they handle both winners and losers, particularly emphasizing initial position size, criteria for adding to and trimming positions, and rationales for deciding when to close out a position.

Security selection, though less critical than generally perceived, is not neglected in the discussions. One recurring theme is choosing a company based on a favorable long-term view of its business model and the quality of its management. Some managers declare affection for founder-run companies. One lends encouragement to readers on the lookout for genuinely undervalued stocks by asserting that the market is inefficient in assessing value beyond a two-year horizon.

Freeman-Shor and Levy’s subjects generally stick with a stock despite interim declines, so long as their arduously developed investment thesis remains intact. A few note that they would have missed out on some of their biggest moneymakers if they had always formulaically sold in response to a sharp price drop.

While Stock Market Maestros contains sound principles, prudent investment professionals will ask by what measure the authors pronounce the dozen investors featured in it the “world’s best” It turns out not to be the sort of metric by which, for example, the late Jim Simons, with a 66.1% average gross annual return (39.1% net of fees) between 1988 and 2018, unquestionably merits a place in that pantheon. The authors devote eight pages to describing their more elaborate process for identifying the champion investors among tens of thousands of public equity mutual funds.

Their first cut included winners of awards from organizations such as Morningstar and Lipper who also achieved high three-year Sharpe, Sortino, and Upside/Downside Capture Ratios. To reach the shortlist of 73, a fund had to be included in the database of Essentia Analytics, founded and headed by author Levy. Twelve managers entered the charmed circle based on Essentia’s methodology for measuring skills in deciding on actions such as selecting securities, sizing positions, and timing exits.

No analysis of investment excellence would be complete without addressing risk. Freeman-Shor and Levy observe, “To the Maestros, risk is defined by the probability of being wrong, not by price volatility.” Price volatility, though, is the denominator of both of the risk-adjusted performance measures the authors use to identify top investors. One of those expert managers opines that the proper criterion is the Sortino ratio, which, unlike the Sharpe ratio, considers downside volatility only.

That comment prompted me to test the premise that choosing between those two metrics actually makes a difference. My analysis came out on the affirmative side of the proposition. I collected a sample of 30 growth equity funds and discovered that the number one fund, as ranked by the Sharpe ratio, ranked only number three by the Sortino ratio. The bottom-third performers’ rankings, however, were not altered by switching from one ratio to the other. This had to do with the fact that the risk-adjusted returns of funds number 20 to 30 spread out more widely than those of the closely bunched top performers.

Readers of Stock Market Maestros can pick up useful tips about sources of pertinent information on companies’ prospects to be found outside of financial statements and earnings calls. Valuable, too, are the red flags that tell the book’s featured investors either to avoid a stock or to conclude that their thesis for buying a stock no longer holds. Forty-one case studies involving both winning and losing holdings can aid investment professionals in execution, which the authors show to be even more important than picking the right stocks. These stories pertain to US, Chinese, European, and global portfolios.

Perhaps the greatest benefit to be derived from this book consists of learning essential traits of highly successful investors. They demonstrate extraordinary industry, discipline, and dedication to continuous improvement of their skills. In the end, embracing these characteristics will likely prove more powerful than any individual strategy discussed in Stock Market Maestros. After all, one of the profiled experts even speaks of “the danger of trying to replicate another investor’s approach.”