NYSE:UMC

United Microelectronics Stock Price (Quote)

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$7.02
-0.120 (-1.68%)
At Close: Nov 17, 2025

Range Low Price High Price Comment
30 days $6.97 $7.90 Monday, 17th Nov 2025 UMC stock ended at $7.02. This is 1.68% less than the trading day before Friday, 14th Nov 2025. During the day the stock fluctuated 1.96% from a day low at $6.97 to a day high of $7.11.
90 days $6.56 $7.90
52 weeks $5.61 $8.33

Historical United Microelectronics Corporation prices

Date Open High Low Close Volume
Nov 17, 2025 $7.08 $7.11 $6.97 $7.02 5 325 743
Nov 14, 2025 $7.08 $7.24 $7.07 $7.14 5 365 990
Nov 13, 2025 $7.22 $7.23 $7.07 $7.11 8 113 923
Nov 12, 2025 $7.25 $7.33 $7.16 $7.24 7 059 910
Nov 11, 2025 $7.37 $7.41 $7.32 $7.38 7 845 755
Nov 10, 2025 $7.44 $7.45 $7.34 $7.43 5 151 664
Nov 07, 2025 $7.29 $7.41 $7.26 $7.41 9 302 713
Nov 06, 2025 $7.49 $7.50 $7.16 $7.31 10 935 746
Nov 05, 2025 $7.65 $7.86 $7.63 $7.76 9 441 452
Nov 04, 2025 $7.68 $7.72 $7.60 $7.60 10 102 700
Nov 03, 2025 $7.82 $7.90 $7.80 $7.84 7 461 468
Oct 31, 2025 $7.61 $7.85 $7.57 $7.71 9 036 418
Oct 30, 2025 $7.49 $7.59 $7.37 $7.53 9 725 900
Oct 29, 2025 $7.80 $7.80 $7.29 $7.39 10 432 524
Oct 28, 2025 $7.55 $7.68 $7.52 $7.63 6 118 055
Oct 27, 2025 $7.52 $7.58 $7.42 $7.57 8 007 240
Oct 24, 2025 $7.57 $7.61 $7.53 $7.54 7 439 763
Oct 23, 2025 $7.35 $7.55 $7.35 $7.52 5 610 212
Oct 22, 2025 $7.41 $7.45 $7.30 $7.38 7 880 268
Oct 21, 2025 $7.49 $7.49 $7.37 $7.45 6 134 903
Oct 20, 2025 $7.57 $7.58 $7.52 $7.52 6 252 763
Oct 17, 2025 $7.47 $7.54 $7.40 $7.47 3 645 834
Oct 16, 2025 $7.48 $7.55 $7.37 $7.43 5 059 383
Oct 15, 2025 $7.42 $7.45 $7.33 $7.42 7 917 615
Oct 14, 2025 $7.44 $7.47 $7.36 $7.40 6 953 393

FAQ

What are historical stock prices?
Historical stock prices refer to a stock’s recorded prices at various past points. These prices include several key figures that help investors and analysts evaluate a stock’s performance over time:
Open: Open price for the trading day.
High: Highest price for the trading day.
Low: Lowest price for the trading day.
Close: Close price for the trading day.

Additionally, historical prices often include:
Volume is the number of shares traded during the day. It indicates how actively a stock was traded and can provide insights into market sentiment and liquidity.

How can I use UMC stock historical prices to predict future price movements?
Trend Analysis: Examine the UMC stock’s historical trends to identify patterns that might continue.
Moving Averages: Use moving averages to detect potential reversal points.
Momentum Indicators: Apply indicators like RSI or MACD to assess the momentum and strength of price movements.
Volume Analysis: Analyze trading volume alongside price changes to gauge trend strength.
Statistical Methods: Use statistical tools such as regression analysis to model and forecast future prices based on past data.
These techniques can provide insights but should be used with risk management practices to mitigate potential losses.

What impact do stock splits have on historical price data?
When a company performs a stock split, it adjusts the historical price data to reflect the new, lower trading price as if it had always been that way.

This ensures consistency for anyone analyzing the stock’s past prices. The adjustment helps prevent misleading signals on charts, such as false sell signals or bearish trends that aren’t there. For instance, in a 2-for-1 stock split, the price per share is cut in half, which would otherwise appear as a dramatic drop on the chart. If someone didn’t know about the split, they might wrongly think something negative happened to the company. Most technical indicators would also react to this apparent drop by signaling to sell.

A stock split, while making the shares seem more affordable and potentially more attractive to investors, doesn’t alter the company’s fundamental value.

Why do the UMC stock historical prices show a range for periods like 30 days, 90 days, and 52 weeks?
The range provides the lowest and highest prices at which the stock has traded during the specified period. This helps investors understand the stock’s volatility and price variability within that timeframe.

How can I use historical price volatility to assess risk?
High price volatility historically indicates higher risk and potentially higher returns. Investors can gauge the stock’s risk level by examining the range between high and low prices over various periods.
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ABOUT UNITED MICROELECTRONICS CORPORATION
United Microelectronics
United Microelectronics Corporation operates as a semiconductor wafer foundry in Taiwan, Singapore, China, Hong Kong, Japan, the United States, Europe, and internationally. The company provides circuit design, mask tooling, wafer fabrication, and assembly and testing services. It serves fabless design companies and integrated device manufacturers. United Microelectronics Corporation was incorporated in 1980 and is headquartered in Hsinchu City, T...
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