date,instId,oiUsd,oi,oiCcy,ts
2026-01-19,BTC-USDT-SWAP,2433776053.94290622066283,2660239.59000001773,26602.3959000001773,1768889635328
2026-01-19,ETH-USDT-SWAP,1877845290.47136559276704,5932935.53000001767,593293.553000001767,1768889635603
2026-01-19,SOL-USDT-SWAP,415744256.2888003997876,3140536.76000000302,3140536.76000000302,1768889772428