 Debt ratings agency SP Global late Wednesday lowered its rating on Coinbase Global Inc.s COIN, 1.30 debt one notch to BB-, with a negative outlook, saying Coinbases trading volumes have weakened meaningfully in the aftermath of the collapse of cryptocurrency exchange FTX and that regulatory risk is rising. We expect profitability to remain pressured in 2023, despite the recently announced reduction in operating expenses and tailwinds from rising interest rates, SP said. 