Dark

BSX
Boston Scientific Corp.
stock NYSE

At Close

Jul 31, 2026 3:59:59 PM EDT

46.73USD+1.587%(+0.73)18,691,885

0.00Bid 0.00Ask 0.00Spread

Pre-market

Jul 31, 2026 9:25:30 AM EDT

45.50USD-1.087%(-0.50)23,134

After-hours

Jul 31, 2026 4:35:30 PM EDT

46.68USD-0.107%(-0.05)2,370,676

OverviewOptionsHistoricalExchange VolumeShortsMore

BSX Volume Jul 31, 2026

[ < ]

Exchange	Day%	Volume	30D%
Off Exchange¹	46.78	8,743,878	47.05
NYSE	21.58	4,032,709	23.46
IEX	8.96	1,674,690	7.20
Nasdaq GSM	8.39	1,568,296	8.81
NYSE Arca	4.88	912,367	4.19
Cboe BZX	3.64	680,077	3.74
Cboe EDGX	2.33	436,022	2.06
MEMX	1.45	271,287	0.97
MIAX Pearl	0.63	118,409	0.33
Cboe EDGA	0.46	85,178	0.45
Cboe BYX	0.31	57,473	0.34
NYSE National	0.28	51,987	0.26
Nasdaq BX	0.12	22,428	0.16
NYSE American	0.06	12,124	0.09
CHX	0.06	11,002	0.79
Nasdaq PHLX	0.06	10,295	0.08
24X National	0.01	1,700	0.01
Texas Stock Exchange LLC	0.01	1,271	0.02
LTSE	0.00	175	0.00

chartexchange.com

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

BSX Nutrition Facts

0.89 servings per container

Serving size

21.12M

Calories

18.69M

% Day

% Avg

Off Exchange¹ 9M

46.78%

47.05%

NYSE 4M

21.58%

23.46%

IEX 2M

8.96%

7.20%

Nasdaq GSM 2M

8.39%

8.81%

NYSE Arca 912K

4.88%

4.19%

Cboe BZX 680K

3.64%

3.74%

Cboe EDGX 436K

2.33%

2.06%

MEMX 271K

1.45%

0.97%

MIAX Pearl 118K

0.63%

0.33%

Cboe EDGA 85K

0.46%

0.45%

Cboe BYX 57K

0.31%

0.34%

NYSE National 52K

0.28%

0.26%

Nasdaq BX 22K

0.12%

0.16%

NYSE American 12K

0.06%

0.09%

CHX 11K

0.06%

0.79%

Nasdaq PHLX 10K

0.06%

0.08%

24X National 2K

0.01%

Texas Stock Exchange LLC 1K

0.01%

0.02%

LTSE 175

0.00%

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

chartexchange.com

BSX Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 8,743,878, which is 46.78% of today's total volume.
Today's Lit volume is 9,947,490, which is 53.22%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 47.05%.
The average Lit volume has been 52.95%.

BSX Volume by Exchange

Off Exchange

NYSE

IEX

Nasdaq GSM

NYSE Arca

Cboe BZX

Cboe EDGX

MEMX

MIAX Pearl

Cboe EDGA

Cboe BYX