Steam move
What does "steam move" mean in sports betting?
A steam move is a sudden line change at nearly every sportsbook at once, usually after heavy betting from sharp players or betting groups.
Steam happens when respected bettors hit the same side at many books in a short window. Books react fast, and the number jumps across the market.
A move at only one book isn't steam. That's usually one book adjusting its own number or exposure.
By the time you see steam, the best part of the price is usually gone. Betting the new number means paying more for the same side, so check whether the bet still clears its breakeven at the moved price.
Example
A total opens at 44.5 at most books. Within minutes it's 46 almost everywhere. If you bet the over at 44.5, a final score of 45 wins. At 46, that same 45 loses. That 1.5-point move is the cost of being late.
Related terms
Total (over/under)
A total, or over/under, is a bet on whether the combined score of both teams lands above or below a number the sportsbook sets.
Closing line value (CLV)
Closing line value (CLV) measures whether you got a better price than the final price before the game started. Beating the closing line consistently is one of the best signs of a real edge.
Line movement
Line movement is when a sportsbook changes a spread, total, prop or price after it opens, usually because of news or the money coming in.
Opening line
The opening line is the first price a sportsbook posts on a game or market, before news and betting money start moving it.
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