Dark

ATTO
Attovia Therapeutics, Inc. Common Stock
stock NASDAQ

At Close

Oct 2, 2026 3:59:52 PM EDT

17.11USD-4.146%(-0.74)348,656

14.46Bid 19.65Ask 5.19Spread

Pre-market

Oct 1, 2026 9:27:30 AM EDT

17.24USD-3.416%(-0.61)0

After-hours

Oct 1, 2026 4:20:30 PM EDT

17.79USD-0.336%(-0.06)0

OverviewHistoricalExchange VolumeShortsMore

ATTO Volume Oct 2, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	50.67	176,663	40.72
Nasdaq GSM	34.72	121,055	34.64
Cboe EDGX	4.50	15,704	3.40
IEX	3.18	11,103	4.16
NYSE Arca	2.43	8,486	6.41
Cboe BZX	1.70	5,935	3.28
Cboe BYX	0.89	3,086	0.88
NYSE	0.52	1,828	1.47
Nasdaq BX	0.49	1,715	0.72
MEMX	0.36	1,266	1.45
Cboe EDGA	0.27	925	1.67
NYSE National	0.09	310	0.42
CHX	0.06	210	0.12
MIAX Pearl	0.06	204	0.39
Nasdaq PHLX	0.05	158	0.12
NYSE American	0.00	0	0.12
24X National	0.00	0	0.01
LTSE	0.00	0	0.01
Texas Stock Exchange LLC	0.00	0	0.01

chartexchange.com

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

ATTO Nutrition Facts

0.99 servings per container

Serving size

352.22K

Calories

348.65K

% Day

% Avg

Off Exchange¹ 177K

50.67%

40.72%

Nasdaq GSM 121K

34.72%

34.64%

Cboe EDGX 16K

4.50%

3.40%

IEX 11K

3.18%

4.16%

NYSE Arca 8K

2.43%

6.41%

Cboe BZX 6K

1.70%

3.28%

Cboe BYX 3K

0.89%

0.88%

NYSE 2K

0.52%

1.47%

Nasdaq BX 2K

0.49%

0.72%

MEMX 1K

0.36%

1.45%

Cboe EDGA 925

0.27%

1.67%

NYSE National 310

0.09%

0.42%

CHX 210

0.06%

0.12%

MIAX Pearl 204

0.06%

0.39%

Nasdaq PHLX 158

0.05%

0.12%

NYSE American 0

0.00%

0.12%

24X National 0

0.00%

0.01%

LTSE 0

0.00%

0.01%

Texas Stock Exchange LLC 0

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

ATTO Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 176,663, which is 50.67% of today's total volume.
Today's Lit volume is 171,985, which is 49.33%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 40.72%.
The average Lit volume has been 59.28%.

ATTO Volume by Exchange

Off Exchange

Nasdaq GSM

Cboe EDGX

IEX

NYSE Arca

Cboe BZX

Cboe BYX

NYSE

Nasdaq BX

MEMX

Cboe EDGA