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Kev's avatar

OK, Dart thrower. Good luck!

pphilip's avatar

1. Overfitting

The author touts an algorithmic strategy with absurd returns (63% annualized!) but fails to acknowledge the glaring issue of overfitting. Imagine watching 1,000 basketball shots taken by a player over their career. With enough data slicing, you might find a pattern: every time they made three consecutive shots from the left corner, their next shot from the top of the key had a 70% success rate. This “strategy” only works in hindsight and has no predictive value for future games. Similarly, the author’s algorithmic strategy is overfitted to past market conditions—it looks brilliant on paper but falls apart when faced with real-world unpredictability. Markets aren’t governed by static rules; they’re driven by human behavior, innovation, and macro forces. Relying on contrived patterns is stupid. True investing requires understanding the underlying business, not gambling on statistical artifacts.

2. Bad Businesses vs. Good Ones: Due Diligence Matters

The author uses examples like Peloton, Zoom, and Snap to argue against stock picking, but these failures only highlight bad investments, not flaws in the concept itself. Value investors don’t chase hype; we buy companies with durable competitive advantages, strong financials, and a margin of safety. If you bought Tesla at $800/share or Zoom during its pandemic peak, that’s your fault—not the market’s. Conversely, buying a company like Coca-Cola in the 1980s or Apple in the early 2000s would have generated life-changing wealth. There’s a reason some businesses thrive while others fail— Do your homework, and you’ll avoid losers. Ignoring bad businesses doesn’t invalidate good ones—it highlights the importance of discernment.

3. Retail Investors Have an Edge Over Fund Managers

The claim that professional fund managers underperform the S&P 500 ignores a critical truth: retail investors actually have structural advantages. Institutions face constraints—liquidity needs, benchmark tracking, committee decision-making—that often force suboptimal choices. Meanwhile, small investors can move nimbly, take concentrated positions, and wait patiently for opportunities without answering to shareholders. Moreover, indexing isn’t inherently superior—it simply reflects the average performance of all participants. If everyone indexed, markets would lose their price-discovery function, creating inefficiencies ripe for exploitation by active investors.

4. Study:

The Bessembinder study claims that only 4% of stocks outperform Treasury bills, but this conclusion is meaningless when you consider the reality of business survival. Studies show that 90-95% of companies fail within just a few years, especially young, unprofitable ones with shaky foundations. These are not investments—it’s like counting lottery tickets as "stocks."

What would actually be relevant is to look at profitable companies, businesses that have generated consistent earnings for years—and compare them to Treasury bills, it does not take a genius to make figure out that this study is a plain joke and have very little relevance.

5. Index Funds:

While index funds offer diversification, they also expose you to hundreds of low-quality businesses dragging down overall returns. Why should my portfolio include zombie companies burning cash or firms with no moat? Indexes are weighted by market capitalization, meaning you’re disproportionately exposed to overvalued giants (e.g., tech darlings in 2021 & 2024). By contrast, selective investing lets you avoid such pitfalls and allocate capital toward truly exceptional businesses. Would you rather own 500 mediocre companies or 10 outstanding ones? Quality matters, and indexing dilutes it.

The author paints a doom-and-gloom picture of stock picking, but his argument boils down to ignorance of proper methodology. Bad investments fail because they’re bad, not because markets are insurmountable. Smart investors who focus on fundamentals, patience, and discipline consistently outperform. Don’t let fearmongering scare you away from buying great companies.

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