Coil

I spent the last couple months building Coil (coil.trade), a long-only trading system that runs inside your own AI agent (built for Claude Code) against your own brokerage. One purchase gets you three things: a scanner that scores every name in the S&P 500, Nasdaq-100, and a macro book; a dashboard; and an engine that trades the scanner's published scores by rule. Credentials never leave your machine.

Honest numbers: the ranking brain backtests at +638% for 2017–2026H1 vs SPY's +282%, survivorship-free — but the outperformance concentrates in leadership regimes; through 2025 it ran roughly even with SPY at about a third less max drawdown. The live engine is new. Backtested is not live, and neither is a promise. It can use a leveraged ETF long-only at reduced size; leveraged funds can lose money fast. Not investment advice — self-operated software. $29 launch, one-time, no subscription. AMA.