Also trades as: 2303.TW (TAI) · $vol 456M
UMC NYSE
United Microelectronics Corporation
1W: +9.5%
1M: +39.1%
3M: +71.8%
YTD: +124.2%
1Y: +134.1%
3Y: +158.9%
5Y: +166.0%
$17.58
+0.46 (+2.69%)
Pre-Market: $17.59 (+0.01, +0.06%)
Weekly Expected Move ±9.8%
$14
$15
$17
$19
$21
Overview
Chart
Smart Money
Financials
Income Statement
Cash Flow
Balance Sheet
Earnings
Analysis
Technicals
Weather
Peers
ESG
Institutions
ETF Exposure
Dark Pool
Short Interest
May Typical
☀️
Sunny
+5.6% YTD avg
Midterm Year
🌧️
Rainy
-4.0% YTD avg
2026 Now
☀️
Sunny
Above typical
20yr Avg YTD
+5.6%
Day 95 of 252
Midterm Year YTD
-4.0%
Presidential cycle avg
2026 YTD
+124.2%
Above 20yr avg
Typical Vol
40%
Annualized
Monthly Weather Forecast
Jan
20yr
💨
+2.2%
Midterm
🌧️
-4.2%
55% win
46% vol
Feb
20yr
💨
+2.0%
Midterm
🌧️
-4.9%
45% win
35% vol
Mar
20yr
💨
+3.8%
Midterm
🌧️
-1.6%
50% win
45% vol
Apr
20yr
💨
+6.1%
Midterm
☁️
-0.6%
60% win
39% vol
May
20yr
💨
+6.1%
Midterm
☁️
-0.8%
62% win
40% vol
Now:
+34.6%
Jun
20yr
⛈️
+5.5%
Midterm
⛈️
-5.6%
65% win
38% vol
Jul
20yr
💨
+6.2%
Midterm
⛈️
-6.9%
40% win
43% vol
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: 2026-05-20
YTD: +124.2%