Dark

BIS
ProShares UltraShort NASDAQ Biotechnology
stock NASDAQ ETF

Market Open

Jul 22, 2025 3:59:30 PM EDT

15.69USD-0.009%(0.00)8,515

15.03Bid 15.20Ask 0.17Spread

Pre-market

0.00USD-100.000%(-15.69)0

After-hours

Jul 21, 2025 4:22:30 PM EDT

16.44USD+0.001%(+0.00)0

OverviewOptionsHistoricalDark Pool LevelsShortsMore

BIS Volume Jul 23, 2025 1:42:47 PM EDT

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	30.41	2,589	56.84
Nasdaq GSM	17.60	1,499	18.61
Cboe BYX	15.85	1,350	6.23
Nasdaq BX	10.14	863	3.36
Cboe EDGX	9.91	844	3.08
MEMX	7.06	601	1.05
NYSE Arca	3.75	319	6.76
Cboe EDGA	2.35	200	0.25
NYSE National	1.17	100	0.71
IEX	1.17	100	1.26
Cboe BZX	0.59	50	1.11
CHX	0.00	0	0.28
MIAX Pearl	0.00	0	0.23
Nasdaq PHLX	0.00	0	0.16
NYSE	0.00	0	0.07

chartexchange.com

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

BIS Nutrition Facts

0.59 servings per container

Serving size

14.46K

Calories

8.52K

% Day

% Avg

Off Exchange¹ 3K

30.41%

56.84%

Nasdaq GSM 1K

17.60%

18.61%

Cboe BYX 1K

15.85%

6.23%

Nasdaq BX 863

10.14%

3.36%

Cboe EDGX 844

9.91%

3.08%

MEMX 601

7.06%

1.05%

NYSE Arca 319

3.75%

6.76%

Cboe EDGA 200

2.35%

0.25%

NYSE National 100

1.17%

0.71%

IEX 100

1.17%

1.26%

Cboe BZX 50

0.59%

1.11%

CHX 0

0.00%

0.28%

MIAX Pearl 0

0.00%

0.23%

Nasdaq PHLX 0

0.00%

0.16%

NYSE 0

0.00%

0.07%

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

chartexchange.com

BIS Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 2,589, which is 30.41% of today's total volume.
Today's Lit volume is 5,926, which is 69.59%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 56.84%.
The average Lit volume has been 43.16%.

BIS Volume by Exchange

Off Exchange

Nasdaq GSM

Cboe BYX

Nasdaq BX

Cboe EDGX

MEMX

NYSE Arca

Cboe EDGA

NYSE National

IEX

Cboe BZX