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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

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Nov 20, 2026 Feb 19, 2027

ITM/OTM for Nov 20, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
138	4,174	49	10,063

ERII Nov 20, 2026 Exp. - Volume by Strike

Puts

Calls

ERII Nov 20, 2026 Exp. - Open Interest by Strike

Puts

Calls

ERII Nov 20, 2026 Exp. - Max Pain @ $7.50

Puts

Calls

ERII Nov 20, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
20.00 C	0.05	-50.00%	20	1,582	08-03	ERII261120C00020000
17.50 C	0.07	-30.00%	2	86	07-30	ERII261120C00017500
15.00 C	0.15	-48.28%	20	548	08-06	ERII261120C00015000
12.50 C	0.30	-25.00%	25	938	08-06	ERII261120C00012500
10.00 C	0.65	-27.78%	27	1,020	08-06	ERII261120C00010000
7.50 C	1.45	-15.70%	1	123	07-29	ERII261120C00007500
5.00 C	4.20	+23.53%	8	14	06-23	ERII261120C00005000
2.50 C	6.24	0%	2	1	05-20	ERII261120C00002500

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
20.00 P	11.49	0%	2	0	06-16	ERII261120P00020000
17.50 P	8.99	0%	2	1	06-16	ERII261120P00017500
15.00 P	0	0%	0			ERII261120P00015000
12.50 P	0	0%	0			ERII261120P00012500
10.00 P	2.15	-14.00%	1	48	08-06	ERII261120P00010000
7.50 P	0.85	-19.05%	3	10,060	07-31	ERII261120P00007500
5.00 P	0.12	0%	3	3	06-11	ERII261120P00005000
2.50 P	0	0%	0			ERII261120P00002500

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