When an idea is worth real money, prove it the way a quant would: out-of-sample, cost-aware, and overfitting-checked, on a survivorship-free universe. We'd rather show you a lower, truthful Sharpe than a flattering one.


Walk-forward backtesting, live at app.tradepolaris.com/backtests
Rolling out-of-sample folds, next-bar-open fills, gap-aware stops, bid/ask spread, square-root market impact and short-borrow costs.
Equity curve vs the S&P 500, Sharpe / Sortino / Calmar, drawdown, VaR / CVaR, a monthly heatmap and a 6-factor attribution.
Probabilistic & Deflated Sharpe, minimum track-record length, and Probability of Backtest Overfitting separate a real edge from luck.
The same honest engine, three doors in — click it together, write real Python, or take the signals with you.
Every strategy runs through the same walk-forward engine and the same overfitting gates — no matter how you author it.
strategy: momentum-x-sectoruniverse: { region: US, top: 500 }signals: - momentum(126) - momentum(21) - filter: adx(14) > 20portfolio: { long: 50, weighting: risk_parity }exits: { trailing: 8%, invalidation: signal_flip }validate: { walk_forward: 5y, costs: realistic, gates: [DSR, PBO] }
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Join beta →Backtested / walk-forward results are hypothetical, do not represent actual trading, and are not indicative of future results.