Bid-Ask
Bid is highest buyer price; ask is lowest seller price. The gap is the spread — the cost of immediate execution.
In Depth
Bid-Ask is a fundamental concept in prediction market trading. In platforms like Polymarket with thousands of active markets, understanding bid-ask is essential for consistent profitability. TradeSphere data across 5,400+ markets shows that traders who master these concepts significantly outperform those trading on instinct.
In practice, bid-ask connects to Spread, Orderbook, Limit Order. PolyPulse tracks these metrics and publishes weekly analysis. For hands-on application, PolyFire provides real-time market data and copy trading via Telegram.
Related Terms
3Spread
tradingThe difference between best bid and best ask price. Tighter spreads indicate more liquid markets with lower costs.
Orderbook
marketsReal-time list of all buy and sell orders organized by price. Shows available liquidity and best bid/ask.
Limit Order
tradingAn order to buy or sell shares at a specific price or better. Limit orders sit in the orderbook until filled or cancelled.
See It in Action
Trade prediction markets with real-time smart money signals on PolyFire.
Open PolyFire