Sharp
Definition
A sophisticated bettor or betting syndicate known for winning consistently. Sharps move lines and are tracked closely by bookmakers.
Example
Sharp action on the underdog might indicate value that the public is missing.
Related terms
Square / Public
Casual bettors who tend to bet with emotion, on favorites, and on popular teams. Their betting patterns are often predictable.
Steam Move
Rapid, significant line movement caused by heavy sharp action across multiple sportsbooks simultaneously. Often indicates strong conviction from professional bettors.
Reverse Line Movement (RLM)
When the line moves in the opposite direction of the majority of bets. This typically indicates sharp money on the less popular side.
Arbitrage (Arb)
A risk-free profit opportunity created when odds discrepancies between sportsbooks allow betting on all outcomes for guaranteed profit. Rare and quickly corrected.
Use EVSignals to find +EV opportunities
Scan Kalshi, Polymarket, and 500+ sources for positive expected value edges.