Press note
Liquidity Rewards: Polymarket Offers $150,000 a Day; Kalshi Paid $2.95M in 30 Days
$149,859 a dayPolymarket liquidity rewards offered
17,866 markets on the current-rewards endpoint, 23:57 UTC on 13 September 2026
Vultax read every liquidity reward on Polymarket and Kalshi on 13 September 2026. Polymarket offered $149,859 a day across 17,866 markets, with finance and weather taking 27% of it on 6% of trading; Kalshi's programs paid out $2.95 million in 30 days, in pools with a median of $20. Both large prediction markets pay traders to keep their order books full, but they pay in different shapes. Polymarket posted liquidity rewards on 17,866 markets worth $149,859 a day, paid daily to makers whose resting orders sit near the midpoint. Kalshi attaches a reward pool to one market for a set period; programs that ended in the 30 days to 12 September and were marked paid out carried $2,952,042, about $98,000 a day.
Observed 2026-09-13T23:57Z to 2026-09-14T00:03Z, population: 185,959 Polymarket markets open for trading, 17,860 of them with liquidity rewards.
Supporting figures
- $2.95 million — Kalshi reward pools paid out in 30 days53,781 programs ending 14 August to 12 September 2026; median pool $20
- 27.3% / 5.9% — Finance and weather on PolymarketShare of daily rewards against share of 24-hour volume across open markets
- $198,545 → $2,473,663 — Kalshi pools paid out, October 2025 to August 2026Programs counted by the month they ended
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- Every open Polymarket market with its spread, liquidity and volume, the inputs that decide what a reward is worth.
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How to cite
Vultax Research, Liquidity Rewards: Polymarket Offers $150,000 a Day; Kalshi Paid $2.95M in 30 Days, 2026-09-17, https://vultax.com/research/polymarket-kalshi-liquidity-rewards
Published 2026-09-17. Figures are the published study; live screens move. Plain-text version · Use our data