1 SPX6900 = 0.38478 USDC
SPCXB → USDC SPCX → USDC SOSO → USDC SRD → USDC STABLE → USDC STAC → USDC SPX → USDB SPX → USDAT SPX → USDAI SPX → USDCn_m SPX → USDC_arb SPX → USDC_base