This page is not a signals service telling you what to buy. It’s a lab that checks whether a trading idea actually made money on real history — using the one test that matters.
A rule for when to buy and sell — e.g. “buy when the price trend turns up.” We test a few classic ones.
We split history in two: teach the rule on the older part, then test it on newer data it has never seen. That’s the only fair test.
EDGE FOUND = beat simply buying & holding. NO EDGE = didn’t. NO EDGE is normal and it just saved you money.
The thing to beat: just buy it and wait. Most active strategies don’t beat it. If a rule can’t beat sitting still, it’s not worth the risk.