Dark

MASS
908 Devices Inc. Common Stock
stock NASDAQ

At Close

Sep 25, 2026 3:59:57 PM EDT

11.45USD-0.608%(-0.07)303,862

7.74Bid 16.30Ask 8.56Spread

Pre-market

0.00USD-100.000%(-11.52)0

After-hours

0.00USD0.000%(0.00)0

OverviewOptionsHistoricalDark Pool LevelsShortsMore

MASS Volume Sep 25, 2026

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	42.37	128,699	38.21
Off Exchange¹	36.78	111,707	38.96
IEX	5.61	17,028	4.60
NYSE Arca	4.80	14,572	5.93
Cboe BZX	3.26	9,899	4.43
Cboe EDGX	2.48	7,545	3.16
NYSE	1.42	4,304	1.32
MEMX	0.67	2,028	0.73
LTSE	0.61	1,843	0.03
Cboe EDGA	0.39	1,173	0.49
Nasdaq BX	0.38	1,141	0.28
Cboe BYX	0.35	1,057	0.88
NYSE National	0.22	664	0.20
Texas Stock Exchange LLC	0.19	583	0.27
Nasdaq PHLX	0.14	419	0.12
CHX	0.14	415	0.07
NYSE American	0.13	402	0.16
MIAX Pearl	0.09	263	0.18
24X National	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.

MASS Nutrition Facts

0.70 servings per container

Serving size

434.82K

Calories

303.74K

% Day

% Avg

Nasdaq GSM 129K

42.37%

38.21%

Off Exchange¹ 112K

36.78%

38.96%

IEX 17K

5.61%

4.60%

NYSE Arca 15K

4.80%

5.93%

Cboe BZX 10K

3.26%

4.43%

Cboe EDGX 8K

2.48%

3.16%

NYSE 4K

1.42%

1.32%

MEMX 2K

0.67%

0.73%

LTSE 2K

0.61%

0.03%

Cboe EDGA 1K

0.39%

0.49%

Nasdaq BX 1K

0.38%

0.28%

Cboe BYX 1K

0.35%

0.88%

NYSE National 664

0.22%

0.20%

Texas Stock Exchange LLC 583

0.19%

0.27%

Nasdaq PHLX 419

0.14%

0.12%

CHX 415

0.14%

0.07%

NYSE American 402

0.13%

0.16%

MIAX Pearl 263

0.09%

0.18%

24X National 0

0.00%

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

chartexchange.com

MASS Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 111,707, which is 36.78% of today's total volume.
Today's Lit volume is 192,035, which is 63.22%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 38.96%.
The average Lit volume has been 61.04%.

MASS Volume by Exchange

Nasdaq GSM

Off Exchange

IEX

NYSE Arca

Cboe BZX

Cboe EDGX

NYSE

MEMX

LTSE

Cboe EDGA

Nasdaq BX