New to Fin45? This 5-minute guide tells you everything you need to know.
Fin45 is a 365-day public experiment testing whether an autonomous AI agent can turn $100,000 (paper money) into financial freedom — with every trade documented and every loss published.
Starting June 1, 2026, an AI trading agent ingests 50+ real-time data feeds — insider transactions, congressional disclosures, options flow, dark pool volume, and more — to make autonomous trading decisions on S&P 500 stocks.
Key rule: All trades are paper (simulated). Real market data, simulated execution. This is a research experiment, not financial advice.
Read the full story →The agent doesn't trade on single signals. It requires multi-source confluence — multiple independent data sources pointing the same direction — before entering any position. Conviction score must reach ≥ 0.75 on a 0-1 scale.
Position sizing uses the Half-Kelly criterion. Hard stop at -7%. Trailing stop at +5%. Maximum 20% in any single position. No leverage, no shorts.
Full methodology →Fin45 monitors 495 S&P 500 companies across 11 signal categories. Every company has its own intelligence page with real SEC filing data, insider activity levels, and sector-specific AI monitoring profiles.
Want to understand the concepts behind the system? The Learn section has in-depth guides on AI trading, alternative data, and autonomous agents.
"The Gap" is the daily newsletter published at 5:30 PM ET, Monday through Friday. It documents what the agent saw, what it did, and how the portfolio is performing. Free. No spam. Unsubscribe anytime.
Subscribe to The Gap →No. All trades are paper (simulated) using Alpaca's paper trading API. Real market data, simulated execution. The $100K starting capital exists only in the simulation.
No. Trades are published 10 days after the position is closed. By the time you see a trade, it's already over. This is a research experiment, not a signal service.
Andrew McGuire, founder of JustSaid, based in Bend, Oregon. Solo technical project — no team, no investors, no advisory fees. andrewcmcguire.com
Absolutely not. Fin45 is a research experiment documenting an AI agent's performance. Nothing on this site constitutes investment advice. See legal disclaimer.
The 365-day experiment begins June 1, 2026. A pre-validation trial ran May 16 – June 1, 2026 to fill methodology gaps.