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UMC
United Microelectronic Corp.
stock NYSE ADR

At Close

Jul 23, 2026 3:59:59 PM EDT

20.88USD-1.926%(-0.41)9,188,085

17.77Bid 20.91Ask 3.14Spread

Pre-market

Jul 23, 2026 9:29:30 AM EDT

20.51USD-3.680%(-0.78)50,237

After-hours

Jul 23, 2026 4:40:30 PM EDT

20.88USD-0.021%(0.00)2,202,224

OverviewOptionsHistoricalDark Pool PrintsShortsMore

UMC Volume Jul 23, 2026

[NF]

Exchange	Day%	Volume	30D%
NYSE	45.22	4,155,211	36.45
Off Exchange¹	23.11	2,123,904	28.42
Nasdaq GSM	10.62	975,518	10.89
NYSE Arca	6.89	633,071	8.53
IEX	5.18	475,802	5.60
Cboe BZX	4.64	426,577	4.26
Cboe EDGX	1.30	119,817	2.22
MEMX	1.06	97,831	1.41
NYSE National	0.56	51,701	0.40
Cboe BYX	0.47	42,816	0.36
Nasdaq BX	0.26	23,559	0.18
MIAX Pearl	0.25	22,765	0.41
Cboe EDGA	0.19	17,061	0.46
Texas Stock Exchange LLC	0.12	11,225	0.01
Nasdaq PHLX	0.07	6,704	0.08
NYSE American	0.04	3,838	0.16
24X National	0.01	1,067	0.02
CHX	0.01	881	0.16
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

0.51 servings per container

Serving size

18.13M

Calories

9.19M

% Day

% Avg

NYSE 4M

45.22%

36.45%

Off Exchange¹ 2M

23.11%

28.42%

Nasdaq GSM 976K

10.62%

10.89%

NYSE Arca 633K

6.89%

8.53%

IEX 476K

5.18%

5.60%

Cboe BZX 427K

4.64%

4.26%

Cboe EDGX 120K

1.30%

2.22%

MEMX 98K

1.06%

1.41%

NYSE National 52K

0.56%

0.40%

Cboe BYX 43K

0.47%

0.36%

Nasdaq BX 24K

0.26%

0.18%

MIAX Pearl 23K

0.25%

0.41%

Cboe EDGA 17K

0.19%

0.46%

Texas Stock Exchange LLC 11K

0.12%

0.01%

Nasdaq PHLX 7K

0.07%

0.08%

NYSE American 4K

0.04%

0.16%

24X National 1K

0.01%

0.02%

CHX 881

0.01%

0.16%

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 2,123,904, which is 23.11% of today's total volume.
Today's Lit volume is 7,065,444, which is 76.89%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 28.42%.
The average Lit volume has been 71.58%.

UMC Volume by Exchange

NYSE

Off Exchange

Nasdaq GSM

NYSE Arca

IEX

Cboe BZX

Cboe EDGX

MEMX

NYSE National

Cboe BYX

Nasdaq BX