Eleven years of options. Not a screenshot of a screenshot.
We hold every option chain back to 2014 in cold storage and pull intraday snapshots throughout the trading day. Every backtest you see ran across all of it.
Total contracts ingested per year.
Coverage by year
We say no, too — and we show our work.
Most options content shows you the wins. We publish the rejects. Here are three plays we filtered out this week, with the audit reason.
Earnings 3 days before expiry
EVENT PROXIMITYEvent-proximity audit found earnings inside the proposed holding window. Historical IV expansion routinely overwhelms short-premium edges around the report. The setup failed before sizing.
Bid-ask spread > 35% of mid
QUOTE QUALITYQuote-quality gate caught a spread wide enough to erase the modeled edge. Live fills would depend on midpoint optimism instead of executable markets. The audit rejected the chain as stale.
Survivorship-biased base rate
STATISTICALThe base-rate validator found the apparent edge came from a biased cohort. Comparable high-momentum names did not survive the corrected significance test. The calendar setup stayed out of the published list.
Backtest, in public.
Eleven years. $10,000 starting. Themis Quant signals, applied mechanically. Compare against SPY buy-and-hold.
Backtests aren't promises. Live results lag backtest by ~30 bps/month on average due to slippage, commissions, and quote staleness. Past performance does not guarantee future returns. See our methodology for full assumptions.
Honest comparison. No marketing math.
We picked the features that actually matter. Tools without a feature get a dash, not a euphemism.
I built Themis because I lost $14k trading options based on someone's PDF.
That PDF promised a 78% win rate. It was real — for the cherry-picked 14 months in the screenshot. Run the same rules over 10 years and the win rate dropped to 51%. Run them with realistic slippage and they lost money outright.
I spent the next two years building the version I wished I'd had: every signal carries its own backtest, every backtest gets a Holm-corrected p-value, and every recommendation tells you what could kill it before you click submit.
Beginners get five clear picks a day with the historical receipts attached. Active traders get the cockpit — 17 strategy engines, walk-forward sweeps, an AI second opinion grounded in the same dataset.
If you've ever stared at a green arrow on someone's Discord and thought "but where's the math" — Themis is what's behind the math.
Three audiences, one tool.
The rejected-trades feed alone is worth the subscription. It's the first tool that tells me why a setup is bad, not just which setups are good.
I came in scared of options. Themis showed me a covered call on stock I already owned and walked through the win rate. I made $40 in a week and didn't blow up. I'm still here.
Walk-forward backtests with Holm-corrected p-values is how my old desk evaluated signals. Seeing it in a $30/mo product is — frankly — surprising.
Three plans. Honest math.
Start free for 7 days. Cancel any time. No upsell to a 'pro' plan that hides features behind a sales call.
Beginner.
Five backtest-vetted picks a day, plain-English walkthroughs, and the historical receipts on every recommendation.
- 5 daily picks · backtested win rate, sample size, worst case
- Plain-English trade walkthroughs
- Cash-secured puts, covered calls, long calls, spreads
- Audit report on every pick (event + quote-quality checks)
- Live paper-trading sandbox
- Email digest at market open
Pro.
The full cockpit. 17 strategy engines, AI Analyst, live paper-vs-backtest tracker, rejected-trade feed.
- Everything in Beginner
- 17 strategy engines with walk-forward backtests
- AI Analyst second-opinion on every trade
- Rejected-trade feed — see what we killed and why
- Live paper-vs-backtest drift tracker
- Multi-leg builder · diagonals, condors, jade lizards
- Slippage analytics by symbol / strategy
Quant.
Quant-fund-grade tooling. Holm correction, regime-conditional sizing, the full 1.2 TB dataset queryable.
- Everything in Pro
- Holm-corrected multiple-hypothesis tests
- Regime-conditional position sizing
- Custom strategy authoring (Python notebooks)
- Full 1.2 TB historical dataset access · queryable
- Walk-forward sweep API
- Priority Slack support · founder direct line
Trade options like the math is on your side.
Start free. Take five backtested plays a day. Promote what passes; reject what doesn't. No fluff.