Dark

OPRX
OptimizeRx Corporation Common Stock
stock NASDAQ

At Close

Aug 13, 2026 3:59:56 PM EDT

8.77USD+24.574%(+1.73)1,124,372

7.46Bid 10.17Ask 2.71Spread

Pre-market

Aug 13, 2026 8:30:30 AM EDT

6.57USD-6.719%(-0.47)500

After-hours

Aug 13, 2026 4:19:30 PM EDT

8.80USD+0.343%(+0.03)200

OverviewOptionsHistoricalExchange VolumeShortsMore

OPRX Volume Aug 13, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	40.89	451,542	39.18
Nasdaq GSM	27.06	298,813	32.14
NYSE Arca	8.25	91,111	7.69
Cboe EDGX	7.12	78,579	3.69
IEX	5.10	56,338	8.16
Cboe BZX	2.99	33,033	4.53
Texas Stock Exchange LLC	2.30	25,380	0.32
MEMX	1.74	19,179	1.32
NYSE	1.11	12,213	1.08
Cboe EDGA	0.88	9,702	0.49
MIAX Pearl	0.63	6,935	0.20
Cboe BYX	0.57	6,255	0.59
Nasdaq BX	0.44	4,888	0.23
NYSE National	0.31	3,466	0.11
NYSE American	0.25	2,786	0.08
24X National	0.19	2,100	0.05
Nasdaq PHLX	0.14	1,568	0.10
CHX	0.03	327	0.04
LTSE	0.00	0	0.02

chartexchange.com

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

OPRX Nutrition Facts

4.30 servings per container

Serving size

256.95K

Calories

1.10M

% Day

% Avg

Off Exchange¹ 452K

40.89%

39.18%

Nasdaq GSM 299K

27.06%

32.14%

NYSE Arca 91K

8.25%

7.69%

Cboe EDGX 79K

7.12%

3.69%

IEX 56K

5.10%

8.16%

Cboe BZX 33K

2.99%

4.53%

Texas Stock Exchange LLC 25K

2.30%

0.32%

MEMX 19K

1.74%

1.32%

NYSE 12K

1.11%

1.08%

Cboe EDGA 10K

0.88%

0.49%

MIAX Pearl 7K

0.63%

0.20%

Cboe BYX 6K

0.57%

0.59%

Nasdaq BX 5K

0.44%

0.23%

NYSE National 3K

0.31%

0.11%

NYSE American 3K

0.25%

0.08%

24X National 2K

0.19%

0.05%

Nasdaq PHLX 2K

0.14%

0.10%

CHX 327

0.03%

0.04%

LTSE 0

0.00%

0.02%

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

chartexchange.com

OPRX Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 451,542, which is 40.89% of today's total volume.
Today's Lit volume is 652,673, which is 59.11%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 39.18%.
The average Lit volume has been 60.82%.

OPRX Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe EDGX

IEX

Cboe BZX

Texas Stock Exchange LLC

MEMX

NYSE

Cboe EDGA

MIAX Pearl