Steam move

You spot a price crashing across every book at once and your instinct screams "get on before it's gone". That instinct has cost a lot of us money.

A steam move is a fast, coordinated shift in the odds, usually sharp syndicate money or a model firing all at once. It tells you where the smart money went, which is genuinely useful information.

The problem is timing. By the time you see the steam, the value that caused it is usually already gone, and you're taking the worse price the move created. Chasing steam is how you end up betting into closed value. Better to treat it as a signal for next time than to jump on the tail end.