1 USDC = 2.7486 SPX6900
USDB → SPX USDAT → SPX USDAI → SPX USDCn_m → SPX USDC_arb → SPX USDC_base → SPX USDC → SPCXB USDC → SPCX USDC → SOSO USDC → SRD USDC → STABLE USDC → STAC