Polymarket live board at 683 active markets, $4,640.7M total volume, $153.3M traded in 24h and $456.6M liquidity

Polymarket activity snapshot

Polymarket’s live-board snapshot listed 683 active markets, $4,640.7M in total volume, $153.3M traded in 24 hours and $456.6M in liquidity. The supplied headline was published on Oct 18, 2026 at 3:24 AM ET.

The accompanying news summary described a quiet quarter-hour: its search found no significant new platform headline in the preceding 15 minutes, only recirculated items already covered on Oct. 17. The summary is truncated, leaving insufficient detail to identify those earlier developments.

Reading the data

According to PredScope Prediction Market Statistics, October 18, 2026, the statistics page draws on Polymarket’s public API and refreshes automatically every 10 minutes. PredScope defines its volume figures as total USDC wagered.

The supplied PredScope page describes coverage of 685+ active prediction markets and gives its latest update as Oct 18, 2026 at 07:35 UTC. That market count differs from the headline’s 683, so the two should be treated as separately reported snapshots rather than a single reconciled reading.

PredScope also describes breakdowns covering category activity, the largest probability changes over 24 hours, volume distribution and leading-outcome probabilities. The supplied extract does not include the underlying values for those breakdowns, or independently display the headline’s volume and liquidity totals.

What it means for prediction markets

• The headline provides a platform-wide activity snapshot, but its aggregate volume and liquidity figures do not establish trading conditions in any individual contract.
• The difference between 683 markets in the headline and 685+ in PredScope’s page description highlights the importance of checking timestamps and coverage before comparing live-board readings.
• The absence of a significant new headline in the summary’s 15-minute search window does not establish that market probabilities were unchanged; no contract-level moves were supplied.