Why Upstart Stock Lost 29% in 2025

Upstart reported robust underlying business growth in 2025 driven by a new AI model and lower rates, with revenue up 79% to $747.8 million through the first three quarters and GAAP net income of $35 million versus a $125.8 million loss a year earlier; management gave strong Q4 guidance. Despite improving fundamentals, the stock finished the year down about 29% as investor concern over rising credit risk — notably auto-loan delinquencies — and a weakening labor market heading into 2026 weighed on sentiment, leaving the firm exposed to macro-driven delinquency risk even as its models have held up.

Analysis

Market structure: Upstart (UPST) benefits from AI-driven origination scale and a demonstrated revenue inflection (Q1–Q3 revenue +79% YoY), while bank balance-sheet lenders and subprime auto captives (e.g., ALLY) are losers if delinquencies rise and funding costs climb. Rising auto delinquencies compress supply of attractive auto paper, tightening warehouse/ABS financing and reducing origination volumes across the sector; expect originations to be volatile and rates on consumer ABS to widen 150–300bp in a stress episode.

Risk assessment: Key tail risks are model breakdown/regulatory fair-lending enforcement, a rapid unemployment spike (>6% U3 within 12 months), or ABS spread dislocation that halts warehouse lines—any would cause >40% downside to UPST equity. Timeline: immediate (days) = headline-driven IV spikes and option mispricings; short-term (weeks–months) = labour prints and Q4/Q1 credit metric releases drive P&L; long-term (quarters–years) = model validation, cumulative net charge-off trends and securitization market access determine valuation.

Trade implications: Favor small, controlled directional exposure to UPST as a high-beta recovery call while hedging macro credit: use 2–3% portfolio long UPST with a 25% stop, or express convexity with 3–6 month 30% OTM call buys (max 0.5% allocation). Pair trade: long UPST vs short ALLY (equal dollar) over 3–9 months to isolate model/tech premium vs pure auto finance credit exposure.

Contrarian angles: The market may have over-discounted growth — UPST grew revenue ~79% YoY vs stock down ~29% last year — so mispricing exists if 90+ day delinquency and net charge-off metrics stay within management guidance for two consecutive quarters. Unintended consequence: aggressive downside positions on auto credit could blow up if unemployment stabilizes and ABS spreads tighten; set metric-based re-entry/stop rules tied to unemployment and 90+ day delinquencies.

Key Decisions for Investors

• Establish a 2–3% long position in UPST (ticker UPST) as a high-beta growth/recovery exposure; set a hard stop-loss at -25% and a take-profit at +60% over a 12-month horizon, add 50% size if 90+ day delinquency rate (company-reported) remains flat or improves over two consecutive quarters.
• Implement a pair trade: long UPST (1.5% portfolio) and short ALLY (ticker ALLY, 1.5%) for 3–9 months to hedge auto-credit cyclicality; unwind if unemployment (U3) exceeds 6% or ABS spreads (BofA US Consumer ABS OAS) widen >200bp from current levels.
• Buy 3–6 month UPST 30% OTM calls sized to 0.5% of portfolio to capture asymmetric upside while limiting cash risk; alternatively sell 30-day covered calls on existing UPST holdings monthly to harvest elevated IV if implied volatility > historical vol +50bps.
• Reduce direct exposure to auto-dependent consumer credit names by 3–5% and reallocate into defensive credit-sensitive assets (investment-grade corporate bonds or short-duration treasuries) until two consecutive monthly payroll/unemployment prints show stabilization (nonfarm payrolls >+100k and U3 <5.5%).
• Require metric triggers before increasing exposure: only add meaningful long UPST exposure if (a) 90+ day delinquencies decline QoQ for two quarters or (b) cumulative net charge-off rate stays below 3.5% over four quarters; reassess if regulatory action or model backtest failures are announced within 60 days.