The Market Structure Map
March 25, 2026
March 18, 2026
“How they square increasing liquidity with delaying information is insane.” So said a skeptic in a ycombinator forum about the SEC’s reputed proposal to end mandatory quarterly reporting, reducing required reports from four to two. There is no official SEC rule-filing yet. You’ll find it...
March 11, 2026
I solved a problem. In the book “The Humans,” by Matt Haig, a mathematician is trying to prove the Riemann Hypothesis suggesting deep foundational meaning in prime numbers. No, I didn’t solve that one. A different one. Before I get to that: Oil jumped Monday...
March 4, 2026
Yesterday, the stock market tanked early on news. The news is we’re at war with Iran. On Mar 2, we were at war with Iran too and stocks closed flat to up, oil was down. Then yesterday, shazam! Stocks nosedived. Early anyway. Had the Dow...
February 25, 2026
Everything I ever needed to know about economics I learned in Sri Lanka. I spent 1989 in Sri Lanka teaching at a post-A-level technical school. I was a junior in college and it was a chance to see the world. The village below the school...
February 18, 2026
Follow the big stingray and you’ll never know what you might see. Speaking of which, I’m back from the sea! Belize, specifically. Here’s a collection of trip photos. I was snorkeling near our catamaran with Karen off South Water Caye and came over coral reef upon...