The questions traders argue about, answered by running them on years of real prices and real options quotes. Most ideas lose to simply holding. We tell you which ones, by how much, and in which year they die.
One engine: real quotes (not end-of-day estimates), rules written down before the test, an out-of-sample exam on years the rule never saw, and a luck check. If a result halves out of sample, we say so. Losing verdicts stay published.
Every verdict free. Members get the receipts: year-by-year numbers, the variants that failed, and why — plus every new verdict as it lands, and unlimited free tools.
Describe your strategy in plain English or Arabic. We run it on the same real data and send a verdict page with receipts within 48 hours. Can't be tested honestly? Not charged.
A morning message with the day's gamma levels and the put-selling screener — what's paying, on which ticker, at what cushion. Until then, the free Gamma Map is live.
A real account trading what the Library says works, in public, with the P&L on the page. The reason to believe any of the above. Until it opens, the date-stamped Trials run every night.
Ask your AI "does the wheel beat holding SOXL?" and it calls Chartments for the real-data answer. Plus SEC filings intelligence — 10-K diffs, insider-buy clusters, 8-K feeds — pre-digested for AI. Answers, not raw dumps.
Type any trading idea in plain English and get an honest backtest vs buy & hold. Run 15 famous indicators against holding. Put an idea on a public forward trial.