“It worked in the backtest…”
…and bled the moment real money hit it. You tuned it until the equity curve looked perfect — which is exactly how you curve-fit it.
For S&P 500 investors
Enter any S&P 500 ticker to see which strategy actually fit it over the last 1, 3, 5 and 10 years — with an honest out-of-sample check — then get its current buy/sell signal by email, and a heads-up when it flips.
If any of these sound familiar, this page is for you.
…and bled the moment real money hit it. You tuned it until the equity curve looked perfect — which is exactly how you curve-fit it.
Trending stocks love breakouts. Range-bound ones reward mean reversion. You can’t hand-test 500 names to find out which is which.
Most services blast the same call to everyone and never tell you whether the edge is real or just survivorship bias and luck.
A single overfit strategy can quietly erase months of gains — and most tools never tell you it was curve-fit.
Any S&P 500 symbol, or pick a famous one below.
A six-strategy comparison across 1, 3, 5 and 10 years, each tagged held up out-of-sample or likely overfit.
The winning strategy’s live buy/sell call, delivered to your inbox — plus a heads-up when it flips.
Enter a ticker or tap a quick pick to see the strategy fit.
Tests run against real point-in-time S&P 500 membership — including the companies that were removed. Most backtests quietly delete the losers, which inflates returns by roughly 2.6–4.3%/yr.
Every winner is re-checked on held-out data. If it decays out-of-sample, we say so instead of hiding it.
Trend, breakout, mean reversion, volatility stops, dual momentum and factor scoring — compared per stock, per timeframe.
This is an early research prototype built by an independent developer. No fake testimonials, no invented user counts, no logos.
$0
$19/mo
Not built yet — we’re testing demand first.