Also trades as: 2303.TW (TAI) · $vol 422M
UMC NYSE
United Microelectronics Corporation
1W: -18.0%
1M: -31.2%
3M: +48.6%
YTD: +121.6%
1Y: +137.9%
3Y: +164.0%
5Y: +133.2%
$17.36
-1.72 (-9.01%)
Pre-Market: $16.58 (-0.78, -4.49%)
Weekly Expected Move ±11.1%
$15
$17
$19
$22
$24
Overview
Chart
Smart Money
Financials
Income Statement
Cash Flow
Balance Sheet
Earnings
Analysis
Technicals
Weather
Peers
ESG
Institutions
ETF Exposure
Dark Pool
Short Interest
Jul Typical
☀️
Sunny
+6.5% YTD avg
Midterm Year
🌧️
Rainy
-2.4% YTD avg
2026 Now
☀️
Sunny
Above typical
20yr Avg YTD
+6.5%
Day 142 of 252
Midterm Year YTD
-2.4%
Presidential cycle avg
2026 YTD
+121.6%
Above 20yr avg
Typical Vol
45%
Annualized
Monthly Weather Forecast
Jan
20yr
💨
+1.5%
Midterm
🌧️
-4.2%
55% win
46% vol
Feb
20yr
💨
+0.8%
Midterm
🌧️
-4.9%
45% win
35% vol
Mar
20yr
💨
+2.6%
Midterm
🌧️
-1.6%
50% win
45% vol
Apr
20yr
💨
+5.4%
Midterm
☁️
-0.6%
60% win
39% vol
May
20yr
💨
+6.0%
Midterm
☁️
-0.8%
60% win
42% vol
Jun
20yr
💨
+6.2%
Midterm
⛈️
-5.6%
70% win
42% vol
Jul
20yr
🌫️
+6.8%
Midterm
⛈️
-6.9%
40% win
45% vol
Now:
-35.3%
Aug
20yr
⛈️
+5.2%
Midterm
⛈️
-7.8%
30% win
36% vol
Sep
20yr
💨
+7.6%
Midterm
⛈️
-13.1%
45% win
44% vol
Oct
20yr
💨
+8.0%
Midterm
⛈️
-16.3%
60% win
60% vol
Nov
20yr
💨
+12.2%
Midterm
⛈️
-10.5%
45% win
61% vol
Dec
20yr
💨
+2.5%
Midterm
🌫️
-0.1%
60% win
37% vol
Seasonality (20yr)
Updated: 2026-07-28
YTD: +121.6%