Core Insights - UBS Credit Strategy Head Matthew Mish warns that the rapid disruptive changes in artificial intelligence (AI) technology may impact the global credit market, leading to increased corporate default risks and systemic credit tightening [1] - The latest large models from organizations like Anthropic and OpenAI have accelerated the pace of AI disruption, necessitating a reassessment of credit risk evaluation frameworks [1] - The market's perception of AI has shifted from a technology-positive view to a "winner-takes-all" scenario, causing pressure on traditional industries and asset sell-offs in sectors like software, finance, real estate, and freight [1] Group 1: Default Predictions - According to UBS's baseline scenario, by the end of 2026, the leveraged loan and private credit sectors could see an increase in defaults ranging from $75 billion to $120 billion [2] - The projected default rates for leveraged loans and private credit could rise to as much as 2.5% and 4%, respectively, corresponding to market sizes of approximately $1.5 trillion and $2 trillion [2] - In extreme scenarios, if the AI transformation accelerates further, default rates could reach twice the baseline expectations, triggering what the market refers to as "tail risk" and leading to credit tightening in the loan market [2] Group 2: AI Sector Classification - UBS classifies AI sector companies into three categories: foundational large model developers, investment-grade software companies with robust financials, and high-debt private equity-controlled software and data service firms [2] - Mish believes that the third category of companies, which are under significant financial strain, has the lowest likelihood of emerging as winners in the rapidly changing landscape [2]

Group 1 - The U.S. credit market is experiencing an unusual boom, with high demand for corporate bonds despite historically low returns [1] - Investment-grade and high-yield bond valuations are at historical highs, with the investment-grade bond spread to U.S. Treasuries dropping to 0.74 percentage points, the lowest since 1998 [1] - The total issuance of U.S. investment-grade corporate bonds reached $210 billion by September 2025, marking a historical high for the same period [1] Group 2 - The financing for high-risk borrowers has expanded from traditional bonds and loans to private credit and asset-backed securities, increasing the potential for default risk [2] - Recent bankruptcy cases, such as Tricolor Holdings and First Brands Group, have raised concerns about the stability of the market [2] - The private credit market has grown to nearly $2 trillion over the past decade, with a lack of strict external regulation making risk accumulation harder to monitor [2] Group 3 - The private credit default rate rose to 9.5% in July 2024, indicating ongoing vulnerabilities in the market [3] - The direction of the credit market is heavily influenced by the U.S. macroeconomic environment, with potential implications for interest rates and borrower pressure [3] - The current credit boom may be overstretching future risk tolerance, as indicated by the increase in "payment-in-kind" (PIK) instruments [3]