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OMER
Omeros Corporation
stock NASDAQ

At Close

Sep 18, 2026 3:59:55 PM EDT

17.89USD-3.062%(-0.56)2,151,356

0.00Bid 0.00Ask 0.00Spread

Pre-market

Sep 18, 2026 9:28:30 AM EDT

18.60USD+0.813%(+0.15)5,617

After-hours

Sep 17, 2026 4:37:30 PM EDT

18.30USD-0.867%(-0.16)0

OverviewOptionsHistoricalExchange VolumeShortsMore

OMER Volume Sep 18, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	39.88	442,488	38.95
Nasdaq GSM	31.18	345,914	31.19
NYSE Arca	10.39	115,320	10.60
Cboe BZX	4.76	52,779	4.22
IEX	4.67	51,798	4.76
Cboe EDGX	3.74	41,501	4.62
NYSE	1.87	20,740	1.55
MEMX	1.07	11,878	1.26
Cboe EDGA	0.50	5,586	0.84
Texas Stock Exchange LLC	0.41	4,561	0.40
Cboe BYX	0.37	4,157	0.50
MIAX Pearl	0.31	3,421	0.32
Nasdaq PHLX	0.31	3,418	0.14
Nasdaq BX	0.18	2,051	0.21
NYSE National	0.12	1,372	0.21
NYSE American	0.11	1,258	0.13
CHX	0.11	1,185	0.08
24X National	0.00	0	0.02
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.

OMER Nutrition Facts

0.52 servings per container

Serving size

2.13M

Calories

1.11M

% Day

% Avg

Off Exchange¹ 442K

39.88%

38.95%

Nasdaq GSM 346K

31.18%

31.19%

NYSE Arca 115K

10.39%

10.60%

Cboe BZX 53K

4.76%

4.22%

IEX 52K

4.67%

4.76%

Cboe EDGX 42K

3.74%

4.62%

NYSE 21K

1.87%

1.55%

MEMX 12K

1.07%

1.26%

Cboe EDGA 6K

0.50%

0.84%

Texas Stock Exchange LLC 5K

0.41%

0.40%

Cboe BYX 4K

0.37%

0.50%

MIAX Pearl 3K

0.31%

0.32%

Nasdaq PHLX 3K

0.31%

0.14%

Nasdaq BX 2K

0.18%

0.21%

NYSE National 1K

0.12%

0.21%

NYSE American 1K

0.11%

0.13%

CHX 1K

0.11%

0.08%

24X National 0

0.00%

0.02%

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

OMER Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 442,488, which is 39.88% of today's total volume.
Today's Lit volume is 666,939, which is 60.12%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 38.95%.
The average Lit volume has been 61.05%.

OMER Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe BZX

IEX

Cboe EDGX

NYSE

MEMX

Cboe EDGA

Texas Stock Exchange LLC

Cboe BYX