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UMC
United Microelectronic Corp.
stock NYSE ADR

At Close

Sep 11, 2026 3:59:58 PM EDT

22.64USD+2.351%(+0.52)7,190,739

0.00Bid 0.00Ask 0.00Spread

Pre-market

Sep 11, 2026 9:29:59 AM EDT

22.44USD+1.447%(+0.32)301,511

After-hours

Sep 11, 2026 4:48:30 PM EDT

22.66USD+0.088%(+0.02)3,736

OverviewOptionsHistoricalDark Pool PrintsShortsMore

UMC Volume Sep 11, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	35.33	1,811,527	30.15
NYSE	21.79	1,117,377	34.43
Nasdaq GSM	14.02	718,861	10.77
NYSE Arca	11.94	612,428	8.10
IEX	6.87	352,164	6.37
Cboe BZX	4.58	234,614	4.02
Cboe EDGX	2.12	108,874	1.72
MEMX	1.09	55,722	1.16
NYSE National	0.74	37,984	0.88
Cboe EDGA	0.50	25,631	0.50
MIAX Pearl	0.39	20,247	0.45
Cboe BYX	0.24	12,371	0.60
Nasdaq BX	0.15	7,854	0.27
Texas Stock Exchange LLC	0.10	5,344	0.05
CHX	0.06	2,942	0.24
NYSE American	0.05	2,555	0.17
Nasdaq PHLX	0.02	1,199	0.11
24X National	0.01	461	0.01
LTSE	0.00	0	0.00

chartexchange.com

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

UMC Nutrition Facts

0.45 servings per container

Serving size

11.33M

Calories

5.13M

% Day

% Avg

Off Exchange¹ 2M

35.33%

30.15%

NYSE 1M

21.79%

34.43%

Nasdaq GSM 719K

14.02%

10.77%

NYSE Arca 612K

11.94%

8.10%

IEX 352K

6.87%

6.37%

Cboe BZX 235K

4.58%

4.02%

Cboe EDGX 109K

2.12%

1.72%

MEMX 56K

1.09%

1.16%

NYSE National 38K

0.74%

0.88%

Cboe EDGA 26K

0.50%

MIAX Pearl 20K

0.39%

0.45%

Cboe BYX 12K

0.24%

0.60%

Nasdaq BX 8K

0.15%

0.27%

Texas Stock Exchange LLC 5K

0.10%

0.05%

CHX 3K

0.06%

0.24%

NYSE American 3K

0.05%

0.17%

Nasdaq PHLX 1K

0.02%

0.11%

24X National 461

0.01%

LTSE 0

0.00%

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

chartexchange.com

UMC Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 1,811,527, which is 35.33% of today's total volume.
Today's Lit volume is 3,316,628, which is 64.67%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 30.15%.
The average Lit volume has been 69.85%.

UMC Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

NYSE Arca

IEX

Cboe BZX

Cboe EDGX

MEMX

NYSE National

Cboe EDGA

MIAX Pearl