Dark

ERII
Energy Recovery, Inc.
stock NASDAQ

At Close

Aug 7, 2026 3:59:58 PM EDT

8.67USD-0.687%(-0.06)976,276

0.00Bid 0.00Ask 0.00Spread

Pre-market

Aug 6, 2026 9:28:30 AM EDT

8.33USD-4.582%(-0.40)0

After-hours

Aug 7, 2026 4:44:30 PM EDT

8.85USD+2.076%(+0.18)140,299

OverviewOptionsHistoricalExchange VolumeShortsMore

ERII Volume Aug 7, 2026

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	38.25	322,743	35.87
Off Exchange¹	37.15	313,494	40.47
NYSE Arca	7.86	66,352	7.99
IEX	7.01	59,120	5.03
Cboe BZX	3.51	29,584	3.72
Cboe EDGX	1.70	14,325	2.29
NYSE	1.67	14,098	1.68
MEMX	0.77	6,483	0.95
Cboe EDGA	0.46	3,871	0.32
Cboe BYX	0.36	3,030	0.77
NYSE American	0.33	2,782	0.15
CHX	0.28	2,327	0.15
Nasdaq PHLX	0.22	1,873	0.12
NYSE National	0.22	1,863	0.14
MIAX Pearl	0.20	1,655	0.18
Nasdaq BX	0.03	264	0.16
24X National	0.00	0	0.00
LTSE	0.00	0	0.00
Texas Stock Exchange LLC	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.

ERII Nutrition Facts

1.01 servings per container

Serving size

835.89K

Calories

843.86K

% Day

% Avg

Nasdaq GSM 323K

38.25%

35.87%

Off Exchange¹ 313K

37.15%

40.47%

NYSE Arca 66K

7.86%

7.99%

IEX 59K

7.01%

5.03%

Cboe BZX 30K

3.51%

3.72%

Cboe EDGX 14K

1.70%

2.29%

NYSE 14K

1.67%

1.68%

MEMX 6K

0.77%

0.95%

Cboe EDGA 4K

0.46%

0.32%

Cboe BYX 3K

0.36%

0.77%

NYSE American 3K

0.33%

0.15%

CHX 2K

0.28%

0.15%

Nasdaq PHLX 2K

0.22%

0.12%

NYSE National 2K

0.22%

0.14%

MIAX Pearl 2K

0.20%

0.18%

Nasdaq BX 264

0.03%

0.16%

24X National 0

0.00%

LTSE 0

0.00%

Texas Stock Exchange LLC 0

0.00%

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

chartexchange.com

ERII Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 313,494, which is 37.15% of today's total volume.
Today's Lit volume is 530,370, which is 62.85%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 40.47%.
The average Lit volume has been 59.53%.

ERII Volume by Exchange

Nasdaq GSM

Off Exchange

NYSE Arca

IEX

Cboe BZX

Cboe EDGX

NYSE

MEMX

Cboe EDGA

Cboe BYX

NYSE American