
UBS warns private credit default rates could rise from about 4.4% to 9%-10% over the next few quarters, with AI-related disruption adding another 3%-4% of risk. Software borrowers look most exposed as AI may slow revenue growth, weaken pricing power, compress margins, and trigger contract cancellations into 2026-2027. UBS says private credit is not a systemic risk in its base case, but a severe software-led downturn could tighten lending conditions across broader corporate credit markets.
The market is underpricing how quickly AI disruption can re-rate private credit from a carry trade into a covenant-and-refinancing problem. The first-order pain is not broad defaults; it is mark-to-market pressure in the loans to software and adjacent B2B services names that sit one layer below public equity narratives. Once lenders start seeing lower renewal rates and weaker pricing power, they will tighten terms preemptively, which can force otherwise solvent borrowers into distressed exchanges months before headline default rates peak. The second-order winner is not “AI winners” broadly, but capital-light software/infra names with pricing power and usage-based revenue that can absorb customer productivity gains without immediate cancellation risk. By contrast, the most vulnerable pocket is private credit funds financed with repo, subscription lines, and NAV facilities: a modest widening in marks can turn illiquidity into de-risking, creating a feedback loop into public leveraged loans and select high-yield bonds. That spillover channel matters more than the absolute default rate because the market is long duration on the assumption that private credit is insulated. The key timing issue is that the real stress window is likely late 2026 into 2027, but the price discovery starts much earlier as lenders and sponsors reprice risk in 2H26. If AI capex remains strong while borrower fundamentals deteriorate, the market can experience a “good growth / bad credit” split where funding costs rise even as top-line AI spend looks healthy. The contrarian takeaway is that this is not a systemic-credit-call yet; it is a dispersion trade, and the main opportunity is to fade the most levered funding chains before consensus fully recognizes the liquidity transmission mechanism.
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