Kalshi vs. Polymarket Volume and Transactions Last 8 Weeks

Kalshi Volume Polymarket Volume Kalshi Tx Polymarket Tx
Week Kalshi Volume Polymarket Volume Kalshi Tx Polymarket Tx
3/30/2026 $2.90B $1.97B 20,098,554 22,698,487
4/6/2026 $3.54B $2.48B 22,157,345 22,349,643
4/13/2026 $3.06B $2.04B 20,874,039 21,429,287
4/20/2026 $3.91B $1.96B 23,788,403 19,220,738
4/27/2026 $3.81B $1.71B 23,200,472 14,837,848
5/4/2026 $4.13B $1.60B 24,327,253 15,805,153
5/11/2026 $3.86B $1.58B 24,003,446 15,858,566
5/18/2026 $4.03B $1.64B 25,982,847 16,022,405