BTC funding arbitrage: kalshi vs phoenix

Long KXBTCPERP on kalshi against short BTC on phoenix.

SideExchangeSymbolFundingFunding APR24h volumeOpen interest
LongkalshiKXBTCPERP0.0235% / 8h+25.68%$332.29M$11.62M
ShortphoenixBTC0.0030% / 1h+26.68%$5.08M$3.43M

Funding spread +0.99% APR. Price spread +0.0823%.

Data generated at 2026-09-01T05:32:53Z. Live numbers load on this page automatically.