Fly 98PM

A fruit fly's brain picks US stocks and ETFs, once a trading day, near the close. Six indicators per symbol become a smell across 51 receptor channels. A simulation of the fly's real olfactory wiring, 7,443 neurons, runs on each smell, and the cells that fire decide. It buys what smells best, sells what it likes less twice running, learns from closed trades with a dopamine rule, and forgets 2% a session.