Direct Answer
Line movement is the change in a market price over time. Lines move in response to new information (injuries, weather, lineups) and in response to money (sharp or public action shifting the book's exposure). Reading movement is the difference between front-running and following.
Key Takeaways
- Information moves: universal, fast.
- Money moves: start at sharps, propagate.
- Reverse line movement implies sharp action.
- Movement post-bet drives CLV but not certainty.
Information moves vs money moves
Information moves are universal — every book moves together when news drops. Money moves often appear at sharper books first (Pinnacle, Circa) and propagate. Reverse line movement (line moving against the majority of bets) is a classic sharp-action signal.
What movement does not mean
A line moving toward your side is not proof of edge. Movement after you bet matters for CLV, but does not guarantee profit on the bet itself. Confusing the two is a common mistake.
Frequently asked questions
Should I always follow steam moves?+
Not blindly. By the time steam reaches public books, the price often no longer offers the original edge.
Educational only. Not wagering, financial, or legal advice. See our editorial policy.