CoreWeave plans to raise $1.5 billion in debt to refinance part of its debt pile after an unsuccessful IPO in March.The company is considering a high-yield bond offering following a roadshow last week with JPMorgan bankers.Refinancing in public credit markets could lower CoreWeave's borrowing costs and potentially support further investments in its operations.CoreWeave had originally planned to raise $2.7 billion in its IPO but scaled it down to $1.5 billion due to concerns about its high debts.