Steam moves & reverse line movement, explained

What is a steam move?

A steam move is a fast, same-direction line change across multiple sportsbooks in a short window, usually driven by large or respected wagers. Example: a spread going from -2.5 to -3.5 at several books within minutes.

What is reverse line movement (RLM)?

RLM is when a line moves against the side receiving the majority of public bets. If most tickets are on the favorite but the line drops from -7 to -6, books may be reacting to money on the underdog.

How to read them

• Compare to the opener. A move only means something relative to where the line started.
• Watch key numbers. In the NFL, moves through 3 and 7 matter more than 4.5 to 5.
• Check the news first. Injuries and weather explain many moves that look like steam.
• Don't chase stale numbers. By the time a move is visible, the best price is often gone. Set a target and wait.

How Linewire uses this

The free Sunday email lists the week's biggest moves from the opener and flags possible steam and RLM when the data supports it. Linewire Pro (in-week alerts) is coming soon. You'll hear first.

Limits

Public data only; ticket and money percentages are estimates. Information, not betting advice. 21+.