Insider buying last 90 days
No open-market insider purchases were filed for UMC in the last 90 days.
From Form 4 filings, dated to when each was filed.
Every UMC insider filing, plotted on the chart in Gekko.Open UMC in Gekko
United Microelectronics (UMC) Stock Analysis & Forecast
$24.61+0.14 (+0.6%)
Close on Sep 18, 2026. Page updated Sep 19, 9:15 pm ET.
Gekko Brief
AI summaryUMC closes at $24.61, up 0.6%, holding well above both its 50-day average of $20.42 and 200-day average of $14.96, with the shorter average above the longer one. The GekkoIndex reads 41.3, placing the stock in the Distribution zone, down 8.4 over the last five readings. Price sits 44.8% above the Gekko Fair Value of $17, a gap the checklist flags as a headwind.
Coverage this week centers on UMC's twelve-month rally of 250.1%, attributed to rising utilization, strong 22/28nm demand and expanding AI-related opportunities, alongside sharply higher earnings estimates. A separate piece notes an upgrade to Strong Buy, while other commentary references a GF Score of 83 following a 4.3% share move to $22.53, and a DCF analysis putting intrinsic value at $29 against a $22 price. A StockInvest.us note carries a Hold/Accumulate rating with a 0.60 technical score and cites a 14.40% gain since a hold signal that began 28 August 2026.
Looking ahead, UMC next reports earnings on 28 October 2026, before the open, which falls outside a typical 20-trading-day holding window; its last report on 29 July 2026 produced a 9.1% reaction, with EPS of $0.54 beating a $0.16 estimate. Options activity over the past 30 days shows one unusual signal, with call premium of $5,445,344 against put premium of $192,280. Seasonality over five years shows the next 20 trading days averaging -2.6%, positive in 2 of those years, a pattern worth noting alongside the current consensus target of $18.49 from 2 firms, both rated sell.
Written by AI and checked automatically against the figures on this page. Generated Sep 20, 2026 from the data above.
Price vs fair value
Close $24.61200-day averageGekko Fair Value $17.00
Key stats
- Market cap
- $61.39B
- P/E ratio
- 21.7
- Forward P/E
- 20.8
- EPS, TTM
- $1.13
- Revenue, TTM
- $250.7B
- Profit margin
- 33.3%
- Dividend yield
- 1.64%
- Beta
- 1.70
- Volume
- 28.98M avg 11.74M
- 1-year return
- +256.7%
- Typical daily move
- ±3.9%
- Typical 20-day move
- ±6.7%
- 50-day average
- $20.42
- 200-day average
- $14.96
- Next earnings
- Oct 28 before open
- Shares outstanding
- 2.51B
United Microelectronics swing-trade checklist
United Microelectronics scores 3 supportive, 0 mixed and 3 headwinds across the 6 checklist items with data.
Six things swing traders check before a 20-day hold, read from the latest data.
3 supportive0 mixed3 headwinds
- Trendsupportive
Above 50 and 200-day
Close $24.61 is above the 50-day ($20.42) and 200-day ($14.96) averages, and the 50-day is above the 200-day.
See the chart - GekkoIndexheadwind
41.3, Distribution
Reading 41.3 is in the Distribution zone.
See the GekkoIndex - Fair valueheadwind
44.8% above
Price is 44.8% above Gekko Fair Value (more than 5% above).
See fair value - Smart moneysupportive
Leans bullish
Last 30 days: 1 unusual options signal.
See smart money - Earnings risksupportive
Reports in 38 days
Next report Oct 28, 2026, 38 days away — outside a typical 20-trading-day hold.
See earnings - Seasonalityheadwind
−2.6% on average
From this point in the calendar, the next 20 trading days averaged −2.6% over 5 years, rising in 2 of them.
See seasonality
A description of current data, not a recommendation. How this page works
United Microelectronics stock chart and price history
United Microelectronics closed at $24.61 on Sep 18, 2026, +256.7% over the past year, inside a 52-week range of $6.90 to $28.96.
Close50-day average200-day averageVolume
Use the left and right arrow keys to read daily values.
Performance Breakdown
- 1 month
- +35.8%
- 3 months
- +2.2%
- 6 months
- +165.8%
- 1 year
- +256.7%
The full UMC chart adds GekkoIndex, insider, options, Congress and hedge fund markers, plus TrendCandles™.Open UMC in Gekko
Follow United Microelectronics through every session
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About United Microelectronics
United Microelectronics manufactures semiconductor wafers on a contract basis for other companies rather than designing chips under its own brand. Its work spans the early stages of circuit layout and mask production through to wafer fabrication, assembly, and testing, making it a full-service partner for firms that need chips physically produced.
The company serves two broad types of customers: integrated device manufacturers that handle both design and production internally, and fabless firms that focus only on chip design and rely on outside partners for manufacturing. United Microelectronics runs operations across several regions, including Taiwan, Singapore, China, Hong Kong, Japan, the United States, and Europe, supporting this global customer base.
United Microelectronics was founded in 1980 and is headquartered in Hsinchu City, Taiwan. Its shares trade under the ticker UMC.
- Sector
- Electronic technology
- Website
- umc.com
United Microelectronics GekkoIndex: the smart money zone
United Microelectronics’s GekkoIndex — Gekko’s 0 to 100 smart money score — reads 41.3, in the Distribution zone, down 8.4 points over five sessions.
41.3Distribution
Down 8.4 points over five sessions, from the Neutral zone.
Reading for Sep 18, 2026
What followed past readings in each zone
| Zone | Readings | 5 days | 20 days | ||
|---|---|---|---|---|---|
| Buying | 52 | +1.1% | +3.3% | ||
| Accumulation | 194 | −0.8% | +1.9% | ||
| Neutral | 308 | +1.7% | +3.2% | ||
| Distribution (current zone) | 59 | +3.7% | +18.1% | ||
| Selling | 2 | Too few readings yet | |||
Average UMC share-price change over the trading days after each daily reading in its GekkoIndex history. Across every stock Gekko tracks, Distribution readings averaged +1.3% over 20 days. Past behaviour doesn’t guarantee future results.
Distribution zone: Institutions potentially offloading. About the five zones →
See every daily GekkoIndex reading plotted over the UMC price, zone by zone.Track UMC in Gekko
Is United Microelectronics stock overvalued? Gekko Fair Value
United Microelectronics trades 44.8% above Gekko Fair Value of $17.00, so the shares are overvalued on Gekko’s estimate.
Gekko’s own estimate of what United Microelectronics shares are worth, recalculated every trading day.
$17.00
Gekko Fair Value, Sep 19, 2026
44.8% Overvalued
Gekko Fair Value on every chart, with the gap to price updating daily.Open UMC in Gekko
United Microelectronics insider and Congress trading
No open-market insider purchases were filed for United Microelectronics, and no Congress trades were disclosed, in the last 90 days.
Plus buybacks, unusual options and fund positions, each dated to when it became public.
Congress trades last 90 days
No trades in UMC were disclosed by members of Congress in the last 90 days.
From congressional disclosures, which report amounts as ranges.
Congress disclosures for UMC, plotted on the chart in Gekko.Open UMC in Gekko
Unusual options activity last 30 days
1signal, 97% of the flagged premium in calls.
Latest: Bullish flow on Sep 17, $5.64M in unusual premium.
Hedge funds and billionaires quarter ended Jun 30
0of the funds Gekko tracks hold UMC.
0added0opened0trimmed1sold out
Every signal with its contract, strike and premium, and which funds are on each side.Unlock in Gekko
United Microelectronics earnings: next date and track record
United Microelectronics reports on Oct 28, 2026, before the open (38 days away), and beat the EPS estimate in 4 of its last 6 reports.
Next earnings report
Oct 28, 2026
Expected before the open, 38 days away
- EPS estimate
- $0.23
- Revenue estimate
- $2.34B
4 of 6reports beat the EPS estimate
±7.5%average move across the report
3 of 8reports followed by a gain
Share-price move across each report
Last earnings call, Jul 29, 2026 AI summary
- What they said
- UMC reported Q2 2026 consolidated revenue of TWD 68.73 billion, up 12.6% QoQ, with gross margin at 32.5%. Utilization improved to 85% from 79%, with wafer shipments reaching 1.13 million 12-inch equivalents. Net income hit TWD 42.26 billion (EPS TWD 3.39), boosted by TWD 30 billion in non-operating investment income. H1 2026 revenue grew 11.3% YoY to TWD 129.77 billion. CapEx budget was raised to $2 billion from $1.5 billion.
- Guidance
- Q3 2026 wafer shipments expected to increase by high single digits, driven by strong demand in power management ICs, sensors, and microcontrollers. Demand momentum expected to remain stable across compute, communication, and consumer segments. Singapore fab capacity to increase meaningfully to 192,000 12-inch wafers.
| Reported | EPS | Revenue | Move |
|---|---|---|---|
| Jul 29, 2026 | $0.54 est $0.16 | $2.12B est $2.14B | +9.1% |
| Apr 29, 2026 | $0.20 est $0.13 | $1.93B est $1.92B | +12.0% |
| Jan 28, 2026 | $0.13 est $0.12 | $1.98B est $1.94B | −15.2% |
| Oct 29, 2025 | $0.20 est $0.12 | $59.13B est $1.93B | −1.3% |
| Jul 30, 2025 | $0.12 | $2.03B | −3.9% |
| Apr 23, 2025 | $0.09 | $1.74B | +1.6% |
| Jan 21, 2025 | $0.10 est $0.15 | — | −8.9% |
| Oct 30, 2024 | $0.18 est $0.18 | $1.92B est $58.99M | −7.7% |
“Move” is the close of the first session after the report compared with the close of the last session before it, so it reads the same whether the company reported before the open or after the close.
United Microelectronics stock forecast and analyst price targets
Analysts’ average 12-month price target for United Microelectronics is $18.49, −24.9% from the last close, from 2 firms rating the stock in the last 90 days.
$18.49consensus 12-month target, −24.9% from the last close
Now $24.61Avg $18.49
Low $7.40High $18.97
Each firm’s latest rating in the last 90 days: 2 firms.
Latest analyst actions
| Date | Firm | Target | vs price |
|---|---|---|---|
| Jul 28 | Bank of America Securities | $18.97 | −22.9% |
| Jul 13 | Bernstein | $7.40 | −69.9% |
+18.1%average 20-day move after past Distribution readings
−2.6%average move over the next 20 trading days in the last 5 years
±3.9%typical daily move, from the 14-day average range
Gekko doesn’t publish price predictions. These are analyst targets and historical base rates, which don’t guarantee future results.
United Microelectronics seasonality: the next 20 trading days
Over the next 20 trading days from Sep 19, United Microelectronics averaged −2.6% across the last 5 years, rising in 2 of them.
Next 20 trading days, by year
Average move and hit rate
| Window | Average | Years higher |
|---|---|---|
| Next 5 trading days | +0.2% | 3 of 5 |
| Next 10 trading days | −4.0% | 1 of 5 |
| Next 15 trading days | −4.2% | 2 of 5 |
| Next 20 trading days | −2.6% | 2 of 5 |
| Next 30 trading days | −5.0% | 2 of 5 |
For scale, UMC’s typical 20-trading-day move in either direction is about 6.7%.
United Microelectronics market cap and key statistics
United Microelectronics’s market cap is $61.39B, with a P/E ratio of 21.7 and revenue of $250.7B over the last twelve months.
Valuation
- Market cap
- $61.39B
- P/E ratio
- 21.7
- Forward P/E
- 20.8
- EPS, TTM
- $1.13
- Gekko Fair Value
- $17.00
Trading
- Volume
- 28.98M
- Avg volume, 20 days
- 11.74M
- 52-week high
- $28.96
- 52-week low
- $6.90
- Shares outstanding
- 2.51B
Financials
- Revenue, TTM
- $250.7B
- Profit margin
- 33.3%
- Return on equity
- 21.3%
- Quarterly earnings growth, YoY
- +374.6%
Risk and income
- Beta
- 1.70
- Typical daily move
- ±3.9%
- Typical 20-day move
- ±6.7%
- Dividend yield
- 1.64%
United Microelectronics stock news this week
Coverage of United Microelectronics this week reads positive: 3 positive, 0 neutral and 0 negative headlines.
- UMC Up 250% in the Past Year: Should Investors Bet on the Stock Now?Zacks Investment Research, Sep 18
- United Microelectronics (UMC) Upgraded to Strong Buy: Here's What You Should KnowZacks Investment Research, Sep 17
- Engineers Gate Manager LP Decreases Stock Position in United Microelectronics Corporation $UMCDefense World, Sep 17
- What is United Microelectronics rStock | How RUMC Works, Use Cases and Values | MEXCMEXC, Sep 16
- United Microelectronics Corp (UMC) Shares Surge 4.3% -- What GF Score of 83 Tells InvestorsGuruFocus, Sep 16
- United Microelectronics rStock (RUMC) Tokenomics: Market Insights, Token Supply, Distribution & Price Data | MEXCMEXC, Sep 16
United Microelectronics stock FAQ
What is United Microelectronics’s market cap?
United Microelectronics’s market cap is $61.39B at the Sep 18, 2026 close of $24.61, with 2.51B shares outstanding. The shares trade on a P/E ratio of 21.7.
What is the United Microelectronics stock forecast?
The consensus analyst 12-month price target for United Microelectronics is $18.49, −24.9% from the last close. Of the 2 firms that rated the stock in the last 90 days, 0 rate it a buy, 0 a hold and 2 a sell. Gekko doesn’t publish price predictions of its own.
Is United Microelectronics stock overvalued or undervalued?
On Gekko’s estimate United Microelectronics is overvalued: the Sep 18, 2026 close of $24.61 is 44.8% above Gekko Fair Value of $17.00. Gekko Fair Value is recalculated every trading day, and a gap inside 5% either way counts as about fair value.
When does United Microelectronics report earnings next?
United Microelectronics is expected to report on Oct 28, 2026, before the market opens (38 days away). Analysts expect earnings of $0.23 per share on revenue of $2.34B. United Microelectronics beat the earnings estimate in 4 of its last 6 reports, moving 7.5% on average across the report.
What is United Microelectronics’s 52-week high and low?
United Microelectronics’s 52-week high is $28.96 and its 52-week low is $6.90; it closed at $24.61 on Sep 18, 2026, +256.7% over the past year.
Is United Microelectronics stock a buy right now?
Gekko describes the data; it does not make buy or sell recommendations. On the swing-trade checklist, 3 of the 6 items with data read as supportive (trend, smart money and earnings risk) and 3 as headwinds (gekkoindex, fair value and seasonality). The checklist is a description of current data, not a recommendation.
Is there unusual options activity in United Microelectronics?
Gekko flagged 1 unusual options signal in United Microelectronics over the last 30 days, with $5.45M of flagged premium in calls and $192K in puts. The latest, bullish flow, was on Sep 17, 2026 with $5.64M in unusual premium. The signal-by-signal table is in Gekko.
How this page works
Prices and signals update after every US market close; the GekkoIndex, Gekko Fair Value and the checklist are Gekko’s own, and the Gekko Brief is written by AI from this page’s data and checked against it before it is published. How Gekko’s data works →
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