By now, you’ve probably heard about 25-year-old wunderkind Leopold Aschenbrenner. After graduating as valedictorian from Columbia University at age 19, he worked for FTX, the crypto trading firm, then found his way to OpenAI, where he worked as a researcher for about a year, until mid-2024. In the [...]
Inside Apple
The way investors think about the stock market may be entirely wrong. Intuition tells us, and academic research confirms, that a company’s stock price should respond to important news and information. When a company announces a new product, for example, its stock should go up. And when results fall [...]
Bessembinder’s warning
In 2020, electric car maker Lucid Motors brought in revenue of $4 million. Five years later, sales had risen impressively, to more than $1 billion. In 2025 alone, sales grew 68%. That sounds like a success story, and through that lens, it is. And yet, over that same period, the company’s stock [...]
The winner’s curse
There’s been drama recently in a normally quiet corner of the market. This story got its start back in 2015, when Warren Buffett helped to merge food makers Kraft and Heinz. At first, it looked like a smart idea. Through cost-cutting, the combined company was expected to save more than $1 billion [...]
Managing market risk
Critics of index funds are pursuing a new line of attack. Passive investing, they argue, is distorting market prices and creating an unhealthy bubble. To be sure, the market today is expensive. The price-to-earnings (P/E) ratio of the S&P 500 stands at about 22. That’s substantially above its [...]
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