You may recall that nerves were jangled this summer over the appearance of a recent Hindenburg Omen—the mathematical formula that measures the probability of a stock market crash, and has reportedly predicted every crash since 1985. Granted, the appearance of an omen didn't necessarily mean a crash was incoming—though a "confirmed" omen, such as the one in June, substantially upped the chances of the market tanking. Well, it looks like the numbers didn't lie.