· Weekly signal · UMC
United Microelectronics (UMC) drops 12.7% as monthly chip pressure builds
The setback cuts into a strong three-month advance for the large-cap semiconductor foundry.
United Microelectronics (UMC) closed at 21.25 USD for the week ended July 17, leaving the ADR down -12.7% in weekly trading.
The chart shows a weekly price path over 52 weeks, so the move is weekly context rather than intraday action. Evidence is mixed: UMC is down -10.3% over four weeks but remains up 73.0% over twelve weeks, with an active trend signal, Relative Strength at 78.6, and Market Dynamics showing pressure.
Trading was heavier than its recent baseline, with 92.2 million shares changing hands versus a 13-week average of 83.7 million shares.