Bernstein reiterates Underperform rating on United Microelectronics stock at $4.80

United Microelectronics (UMC) reported Q2 2025 revenue of NT$59 billion, missing consensus and company guidance by 4.9% and 2.7% respectively, largely due to significant foreign exchange headwinds from the Taiwan dollar's appreciation. This performance, combined with concerns over escalating competition from Chinese semiconductor firms and rising costs, has prompted negative revisions from analysts; Bernstein reiterated an Underperform rating, while Goldman Sachs downgraded UMC to Sell, citing currency mismatch and competitive pressures as key risks to future profitability and market positioning.

Analysis

United Microelectronics (UMC) reported second-quarter 2025 revenue of NT$59 billion, a figure that missed consensus estimates by 4.9% and the company's own guidance midpoint by 2.7%. This underperformance was primarily driven by significant foreign exchange headwinds, with the Taiwan dollar's appreciation of over 10% against the U.S. dollar creating an approximate 5% drag on revenue. The currency impact, combined with intensifying long-term competitive pressure from Chinese firms in mature nodes, prompted negative analyst revisions. Goldman Sachs downgraded UMC from Neutral to Sell, forecasting a 1.8% revenue decline in 2025 due to the currency mismatch between its USD earnings and TWD costs. Concurrently, Bernstein SocGen Group reiterated its Underperform rating and a $4.80 price target, highlighting the same competitive risks. Despite these challenges and a bearish sentiment score of -0.7, UMC maintains a healthy 31.5% gross margin and offers a substantial 4.7% dividend yield, which it has sustained for 16 consecutive years, creating a conflicting picture between operational headwinds and shareholder returns.

Key Decisions for Investors

• Investors should weigh the significant risks posed by adverse currency movements and escalating competition from China, as highlighted by downgrades from Goldman Sachs and Bernstein, against the stock's defensive characteristics, such as its 4.7% dividend yield and a record of 16 years of payments.
• Given that Q2 revenue guidance was initially inflated by favorable FX assumptions, future guidance should be scrutinized for its underlying currency projections to better gauge operational performance.
• Consider the divergence between bearish analyst price targets, such as Bernstein's $4.80, and the current trading price of $7.59, which suggests significant downside risk if competitive and currency pressures materialize as forecasted.