Volume

The total dollar value of contracts traded in a market over a period, usually reported as 24-hour and lifetime figures.

BetG8 Editorial · Reviewed November 6, 2026 · Not betting, legal or investment advice

Volume shows how much attention and money a question attracts. High volume with a stable price suggests a settled consensus; high volume with a fast-moving price suggests new information arriving. Low volume means the price could be set by a handful of traders.

Venues count volume differently. Polymarket reports notional value traded; Kalshi reports contracts and dollars. Neither figure tells you about the order book right now, which is liquidity.

BetG8 hub pages rank markets by 24-hour volume because it is the best single signal of where the action is today.

Where you will see it on BetG8

Liquidity Most active markets

More odds and pricing terms

Implied probability Vig (vigorish)Bid-ask spread Liquidity

Frequently asked questions

What does "Volume" mean?: The total dollar value of contracts traded in a market over a period, usually reported as 24-hour and lifetime figures.
Why does volume matter for prediction markets?: BetG8 hub pages rank markets by 24-hour volume because it is the best single signal of where the action is today.