Dark

BLFS
BioLife Solutions Inc.
stock NASDAQ

At Close

Jul 31, 2026 3:59:51 PM EDT

31.28USD-1.138%(-0.36)764,448

0.00Bid 0.00Ask 0.00Spread

Pre-market

Jul 27, 2026 8:06:30 AM EDT

29.95USD-5.341%(-1.69)0

After-hours

Jul 31, 2026 4:00:30 PM EDT

31.28USD0.000%(0.00)68,577

OverviewOptionsHistoricalExchange VolumeShortsMore

BLFS Volume Jul 31, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	35.33	270,118	45.06
Nasdaq GSM	33.36	255,035	30.07
NYSE Arca	8.15	62,304	6.56
Cboe BZX	6.10	46,672	4.70
Cboe EDGX	6.04	46,166	2.79
IEX	5.81	44,401	5.98
MEMX	1.49	11,368	1.08
Cboe BYX	1.48	11,322	0.78
NYSE	1.11	8,500	1.09
Cboe EDGA	0.33	2,506	0.48
MIAX Pearl	0.23	1,795	0.33
LTSE	0.22	1,700	0.13
NYSE National	0.14	1,079	0.20
Nasdaq BX	0.10	752	0.47
NYSE American	0.04	332	0.10
24X National	0.04	304	0.00
Nasdaq PHLX	0.02	177	0.12
CHX	0.00	0	0.04
Texas Stock Exchange LLC	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.

BLFS Nutrition Facts

0.49 servings per container

Serving size

1.57M

Calories

764.53K

% Day

% Avg

Off Exchange¹ 270K

35.33%

45.06%

Nasdaq GSM 255K

33.36%

30.07%

NYSE Arca 62K

8.15%

6.56%

Cboe BZX 47K

6.10%

4.70%

Cboe EDGX 46K

6.04%

2.79%

IEX 44K

5.81%

5.98%

MEMX 11K

1.49%

1.08%

Cboe BYX 11K

1.48%

0.78%

NYSE 9K

1.11%

1.09%

Cboe EDGA 3K

0.33%

0.48%

MIAX Pearl 2K

0.23%

0.33%

LTSE 2K

0.22%

0.13%

NYSE National 1K

0.14%

0.20%

Nasdaq BX 752

0.10%

0.47%

NYSE American 332

0.04%

0.10%

24X National 304

0.04%

0.00%

Nasdaq PHLX 177

0.02%

0.12%

CHX 0

0.00%

0.04%

Texas Stock Exchange LLC 0

0.00%

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

chartexchange.com

BLFS Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 270,118, which is 35.33% of today's total volume.
Today's Lit volume is 494,413, which is 64.67%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 45.06%.
The average Lit volume has been 54.94%.

BLFS Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe BZX

Cboe EDGX

IEX

MEMX

Cboe BYX

NYSE

Cboe EDGA

MIAX Pearl