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United Microelectronics Corporation (UMC) Corporate Logo

United Microelectronics Corporation (UMC) Stock Price & Analysis

Market: NYSE • Sector: Technology • Industry: Semiconductors

United Microelectronics Corporation (UMC) Profile & Business Summary

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, Taiwan.

Key Information

Ticker UMC
Exchange NYSE
Official Site https://www.umc.com
CIK Number 0001033767
View SEC Filings

Market Trend Overview for UMC

One model, two time views: what the market looks like right now, and where the larger trend is heading over time.

Longer-Term Market Trend (Mid to Long Term)

Shows the bigger market trend, how strong it is, and where risks may start to build over the next few weeks or months. — Updated as of 2026-10-13 (ET)

As of 2026-10-13, UMC is showing signs of slowing down. Over the longer term, the trend remains bullish.

UMC last closed at 22.39. The price is about 0.7 ATR below its recent average price (23.58), and the market is currently in a trend that may be losing strength. Price at 22.39 is near minor support around 21.59. Momentum may slow, while minor resistance sits near 22.72. View Support & Resistance from Options

The broader uptrend is still intact, but price has moved far from its recent average, increasing the risk of a pullback.

Trend Alignment Summary

Trend score: 55 out of 100. Overall alignment is unclear. The market is currently in a late-stage trend that may be losing strength. The longer-term trend is still positive, but short-term signals are not yet confirming it.

Key Risk Level

A key downside risk boundary is near 21.76. If price falls below this area, the current structure would likely weaken further.

Recent Trend Signal

On 2026-10-06, trend conditions deteriorated, suggesting that moves in the prior direction became less dependable.

Unusual Price Movement

[2026-10-09] Price moved quickly and looked strong, but participation was limited.

Recent Price Behavior

Recent bars show mixed price behavior without a clear shift in structural quality or efficiency.

Overnight Positioning

Some late-day positioning was observed, but it lacked strong overnight commitment.

Next-day directional probability forecast Last updated: 2026-10-13 (ET)
Next-session outlook for 2026-10-14 (ET)
Bearish setup for the next session

What the model sees

The model sees a bearish edge, but still treats it as a selective downside setup rather than an aggressive downside call.


Why the model says this

Up probability is only 41.9%, with predictability at 51% and agreement at 93%. Reversal risk is 15%, while reward/risk stands at -0.21. That suggests downside pressure is present, while the setup still remains selective rather than extreme. At the same time, recent price behavior has shown failed reversal memory.

NOTE: This next-day up/down probability forecast module is still being tested for accuracy. Please do not rely on it for investment decisions. The model does not account for black swan events or company-specific fundamental news, and its estimates are based solely on technical conditions, capital flow, and market sentiment. View forecast history

Recent Cost Distribution Last updated: 2026-10-13 (ET)

This estimate uses 1-minute price, volume, and VWAP data from the last 58 trading days, with turnover-based decay. The sample period is 2026-07-23 to 2026-10-13. The current price is 22.39, 6.71% above the estimated average cost of 20.98. An estimated 65.1% of recent positioning is below the current price, while 34.4% is above it. The peak-density price is 19.05. The largest concentrated cost region is 17.98 to 19.97 and contains 40.0% of the estimated distribution. The nearest region below the current price is 21.88 to 22.27. The nearest region above the current price is 22.48 to 22.67.

Short Interest & Covering Risk for UMC

This analysis looks at overall short interest positioning, focusing on the broader setup rather than short-term noise.

Squeeze Score 0.20

Shows how likely a short squeeze may be under current market conditions.

Key Market Risk Indicators
Short Crowding (Short Interest / Float) 1.11%
Short Positions Trend Not Increasing
Liquidity Trend (Average Daily Volume) 0.84%
20-Day Return 3.61%
Price vs 20-Day High Below Recent Highs

Short Exposure Percentile

Short interest is within its typical range, with no clear imbalance between buyers and sellers. (Historical percentile: 49%)

Structure Analysis

UMC Short positioning looks normal. Current days to cover is 2.4 trading days, meaning short positions could unwind at a normal pace. Short covering is likely to have a normal impact on price moves. No meaningful structural fragility is currently detected (Fragility Score 6/100, DTC percentile 15%).

Risk Summary

No clear bull trap characteristics detected. Recent price behavior remains broadly consistent with current positioning.This reading helps confirm that current price action remains structurally healthy and does not indicate elevated trap risk.

Why Price Reactions May Be Stronger?

Price action is compressing (range is tightening), which can make breaks more sensitive. Adaptive thresholds applied to liquidity weakness, near-high detection, and compression sensitivity. As a result, similar news or market events could lead to price moves about 1× larger than usual.


Note: Short interest data is reported every two weeks by FINRA. The most recent snapshot is 2026-09-30 (ET).
Because this data updates slowly, it is not intended to predict short-term price moves. Instead, it helps describe longer-term market structure and where pressure may be building if prices begin to move.

Analytical Modules