A shaky picture for markets, bad news for anyone exposed to the AI-fueled debt boom and the private credit funds bankrolling it.

• The head of a troubled BlackRock private credit fund is leaving after months of losses on bad loans, with federal prosecutors now probing how the fund valued those loans.
• These funds bundle hard-to-see private loans and mark their own value, so no one really knows how many loans are bad — echoes of the 2008 crisis.
• Investors want their money out, but big firms like Apollo, Ares, Blackstone and BlackRock are blocking or slowing withdrawals.
• A huge chunk of this borrowing funds AI data centers and cash-burning companies like Musk's SpaceX, which keep borrowing to pay off old debt.
• If AI underdelivers, the fear is empty, half-built data centers — like China's stalled property boom — while the Fed signals it won't cut rates and may even raise them to fight high prices.

Outlook: Expect more fund shake-ups and scrutiny of these loan values, with rising risk that soured AI and private credit debt triggers a wider market shock.