Wealth
66,465 households: the busiest traders earned 11.4%, the market 17.9%
In 66,465 U.S. brokerage households, 1991–96, the busiest traders earned 11.4% a year as the market made 17.9%. What the study says trading cost them.
Investing basics
Wealth
What Isaac Newton Really Lost in the South Sea Bubble
Newton didn't go broke in 1720. He took an early profit, bought back in, and lost more than he'd made. What the records show, and the trap that caught him.
Wealth
A 1494 rule of thumb that still explains your money
The Rule of 72 turns any rate into years. Where it came from, why it works, and the three places it quietly breaks. Education only, no tips.