$3.21B traded so far on Oct. 30 across 9 prediction market venues, with Kalshi at $2.74B

Oct. 30 trading snapshot

Trading across 9 prediction-market venues reached $3.21B so far on Oct. 30, 2026, with Kalshi accounting for $2.74B, according to the supplied snapshot published at 7:24 PM ET.

The accompanying news-search summary identified no significant new platform headline in the preceding 30 minutes. It described results as recirculating material already considered that day, including a Kalshi 76ers partner item, rather than providing a fresh development.

Volume measures require care

According to defirate.com, its volume data values contracts at their $1 face value. The supplied excerpt separately lists $29.2B in dollars actually paid and $4.2B over the last 24 hours.

The excerpt does not specify the period covered by the $29.2B figure or provide enough detail to reconcile its figures with the Oct. 30 snapshot. The day-so-far total, trailing-24-hour figure and distinction between face value and dollars paid should therefore remain separate.

What it means for prediction markets

• Kalshi accounts for most of the reported $3.21B across the 9 venues, making concentration the clearest takeaway from the snapshot.
• Comparisons depend on both the measurement window and whether volume reflects contract face value or dollars actually paid.
• The supplied material identifies no fresh platform-news catalyst in the preceding 30 minutes and does not establish what drove the trading totals.