Stock Track | United Microelectronics Plunges 7.24% in Pre-Market on Earnings Concerns and 2D NAND Foundry Doubts

Stock Track04-23 16:09

United Microelectronics' stock experienced a sharp pre-market plunge, declining 7.24%. This significant downward movement occurred ahead of the company's scheduled first-quarter 2026 earnings report.

The decline is attributed to mounting investor concerns over the company's near-term profitability. Market consensus expects the company to report a significant year-over-year decline in adjusted earnings per share alongside margin pressures, despite modest top-line growth forecasts. Furthermore, earlier market speculation regarding the company's potential entry into the 2D NAND foundry business has lost credibility after supply chain sources cited substantial challenges, leading to a rapid unwinding of previous optimism.

Broader weakness in the semiconductor sector also contributed to the negative sentiment, with major industry peers trading lower during the session.

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