There is no new catalyst: UMC's decline deepened to about 8.5% from roughly 5.0% earlier, extending the reaction to its October 28 Q3 earnings release and the October 30 cut to Q4 EPS consensus. TSM and GFS fell sharply with UMC as semiconductor selling intensified, while the Nasdaq dropped and volatility jumped. The Morningstar valuation commentary added pressure around UMC's future pricing assumptions.
There is no new catalyst: UMC's decline deepened to about 8.5% from roughly 5.0% earlier, extending the reaction to its October 28 Q3 earnings release and the October 30 cut to Q4 EPS consensus. TSM and GFS fell sharply with UMC as semiconductor selling intensified, while the Nasdaq dropped and volatility jumped. The Morningstar valuation commentary added pressure around UMC's future pricing assumptions.