The Market Structure Map
August 13, 2025
Today’s alpha is tomorrow’s beta. That’s a line I read in a Bloomberg story (subscription required) about hedge fund Schonfeld, whose 38-year-old CEO Ryan Tolkin is reported to have said it. Schonfeld is a multi-strategy hedge fund with about $14 billion of assets. It’s always...
August 6, 2025
I wouldn’t call it a scam. But it’s head-scratching. To explain, here are some big numbers. Four million Americans currently retire from jobs each year. We thus need nearly 350,000 jobs monthly replacing them. Last week like a flash-bang hucked at a sleepover, the US...
July 30, 2025
Tell them it’s human nature, sang Jacob Collier. Well, Michael Jackson crooned that in 1982 under the tutelage of Quincy Jones. At the Denver Botanic Gardens Jul 28, musical savant Jacob Collier who Quincy Jones championed played Michael Jackson’s Human Nature with technological wizardry that...
July 23, 2025
Stage 16 of the Tour de France yesterday raced up Provence’s forbidding Mont Ventoux, and nobody displaced the wearer of the Maillot Jaune, the yellow jersey, Tadej Pogacar (po-GOT-cher), the Scottie Scheffler of cycling. I rode Mont Ventoux in 2013, a long leg-burner from the...
July 16, 2025
Does the book by Amos Tversky and Daniel Kahneman, “Thinking, Fast and Slow,” highlight the fundamental flaw in AI? The definition of heuristic (a key Tversky Kahneman topic) is, paraphrasing, pragmatic problem-solving, subject to vagary and error. One could say that eliminating vagary and error...
July 9, 2025
Jane Street, a top 25 holder of US equities in 13Fs and one of the biggest global proprietary traders, has been banned for now from the Indian stock market by the regulatory equivalent there of the SEC. Why should you care, investors and public companies?...