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XBI
State Street SPDR S&P Biotech ETF
stock NYSE ETF

At Close

Oct 2, 2026 3:59:59 PM EDT

154.45USD-0.039%(-0.06)8,732,040

149.51Bid 158.33Ask 8.82Spread

Pre-market

Oct 2, 2026 9:28:30 AM EDT

156.28USD+1.146%(+1.77)53,178

After-hours

Oct 2, 2026 4:46:30 PM EDT

154.71USD+0.168%(+0.26)48,352

OverviewOptionsHistoricalExchange VolumeShortsMore

XBI Volume Oct 2, 2026

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Exchange	Day%	Volume	30D%
Off Exchange¹	43.30	3,783,997	36.34
NYSE Arca	19.02	1,662,129	22.66
Nasdaq GSM	17.34	1,515,460	16.81
Cboe BZX	6.27	547,973	7.01
IEX	4.82	421,523	5.41
NYSE	2.80	245,111	3.54
Cboe EDGX	2.43	212,278	3.14
Nasdaq BX	0.84	73,272	0.49
MEMX	0.76	66,337	1.55
Cboe EDGA	0.66	58,087	0.66
Cboe BYX	0.43	37,470	0.56
Nasdaq PHLX	0.39	34,102	0.24
MIAX Pearl	0.39	33,881	0.35
NYSE National	0.23	19,908	0.27
Texas Stock Exchange LLC	0.13	11,358	0.14
24X National	0.12	10,392	0.08
NYSE American	0.04	3,732	0.09
CHX	0.02	1,941	0.65
LTSE	0.00	0	0.00

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

XBI Nutrition Facts

0.99 servings per container

Serving size

8.79M

Calories

8.74M

% Day

% Avg

Off Exchange¹ 4M

43.30%

36.34%

NYSE Arca 2M

19.02%

22.66%

Nasdaq GSM 2M

17.34%

16.81%

Cboe BZX 548K

6.27%

7.01%

IEX 422K

4.82%

5.41%

NYSE 245K

2.80%

3.54%

Cboe EDGX 212K

2.43%

3.14%

Nasdaq BX 73K

0.84%

0.49%

MEMX 66K

0.76%

1.55%

Cboe EDGA 58K

0.66%

Cboe BYX 37K

0.43%

0.56%

Nasdaq PHLX 34K

0.39%

0.24%

MIAX Pearl 34K

0.39%

0.35%

NYSE National 20K

0.23%

0.27%

Texas Stock Exchange LLC 11K

0.13%

0.14%

24X National 10K

0.12%

0.08%

NYSE American 4K

0.04%

0.09%

CHX 2K

0.02%

0.65%

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

XBI Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 3,783,997, which is 43.30% of today's total volume.
Today's Lit volume is 4,954,954, which is 56.70%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 36.34%.
The average Lit volume has been 63.66%.

XBI Volume by Exchange

Off Exchange

NYSE Arca

Nasdaq GSM

Cboe BZX

IEX

NYSE

Cboe EDGX

Nasdaq BX

MEMX

Cboe EDGA

Cboe BYX