Dark

TER
Teradyne, Inc. Common Stock
stock NASDAQ

At Close

May 18, 2026 3:59:58 PM EDT

321.03USD-4.987%(-16.85)4,650,312

306.09Bid 334.14Ask 28.05Spread

Pre-market

May 18, 2026 9:29:30 AM EDT

338.75USD+0.257%(+0.87)10,772

After-hours

May 18, 2026 4:59:30 PM EDT

321.30USD+0.084%(+0.27)1,260,233

OverviewOptionsHistoricalDark Pool LevelsShortsMore

TER Volume May 18, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	43.35	2,006,719	44.35
Nasdaq GSM	35.24	1,631,326	34.29
NYSE Arca	6.56	303,449	5.54
Cboe BZX	5.34	247,141	3.97
IEX	4.60	213,101	4.33
Cboe EDGX	1.68	77,866	2.36
NYSE	1.10	50,771	1.47
MEMX	0.48	22,098	0.91
Cboe BYX	0.42	19,511	0.67
Nasdaq BX	0.30	13,771	0.37
MIAX Pearl	0.20	9,128	0.22
NYSE American	0.19	8,839	0.10
CHX	0.18	8,118	0.68
Cboe EDGA	0.17	8,018	0.31
NYSE National	0.11	5,212	0.30
Nasdaq PHLX	0.08	3,778	0.12
LTSE	0.00	100	0.01
24X National	0.00	80	0.01

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

TER Nutrition Facts

1.24 servings per container

Serving size

3.74M

Calories

4.63M

% Day

% Avg

Off Exchange¹ 2M

43.35%

44.35%

Nasdaq GSM 2M

35.24%

34.29%

NYSE Arca 303K

6.56%

5.54%

Cboe BZX 247K

5.34%

3.97%

IEX 213K

4.60%

4.33%

Cboe EDGX 78K

1.68%

2.36%

NYSE 51K

1.10%

1.47%

MEMX 22K

0.48%

0.91%

Cboe BYX 20K

0.42%

0.67%

Nasdaq BX 14K

0.30%

0.37%

MIAX Pearl 9K

0.20%

0.22%

NYSE American 9K

0.19%

0.10%

CHX 8K

0.18%

0.68%

Cboe EDGA 8K

0.17%

0.31%

NYSE National 5K

0.11%

0.30%

Nasdaq PHLX 4K

0.08%

0.12%

LTSE 100

0.00%

0.01%

24X National 80

0.00%

0.01%

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

chartexchange.com

TER Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 2,006,719, which is 43.35% of today's total volume.
Today's Lit volume is 2,622,307, which is 56.65%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 44.35%.
The average Lit volume has been 55.65%.

TER Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe BZX

IEX

Cboe EDGX

NYSE

MEMX

Cboe BYX

Nasdaq BX

MIAX Pearl