Price Alert

Energy Recovery Inc. (ERII)

NASDAQ: ERII · Real-Time Price · USD

15.77

-0.10 (-0.63%)

At close: Oct 03, 2025, 3:59 PM

14.56

-7.67%

After-hours: Oct 03, 2025, 07:26 PM EDT

ERII Option Overview

Overview for all option chains of ERII. As of October 05, 2025, ERII options have an IV of 181.72% and an IV rank of 116.05%. The volume is 223 contracts, which is 163.97% of average daily volume of 136 contracts. The volume put-call ratio is 2.05, indicating a bearish sentiment in the market.

Implied Volatility

Implied Volatility (30d)

181.72%

IV Rank

100%

Historical Volatility

24.26%

IV Low

66.68% on Mar 31, 2025

IV High

165.81% on Oct 03, 2025

Open Interest (OI)

Today's Open Interest

2,633

Put-Call Ratio

0.46

Put Open Interest

827

Call Open Interest

1,806

Open Interest Avg (30-day)

2,122

Today vs Open Interest Avg (30-day)

124.08%

Option Volume

Today's Volume

223

Put-Call Ratio

2.05

Put Volume

150

Call Volume

Volume Avg (30-day)

136

Today vs Volume Avg (30-day)

163.97%

Option Chain Statistics

This table provides a comprehensive overview of all ERII options grouped by their expiration dates.

Expiration	Call Vol	Put Vol	P/C Vol	Call OI	Put OI	P/C OI	Implied Volatility	Max Pain
Oct 17, 2025	2	150	75	389	243	0.62	181.72%	15
Nov 21, 2025	69	0	0	790	493	0.62	97.44%	15
Jan 16, 2026	0	0	0	0	0	0	12.41%	50
Feb 20, 2026	2	0	0	428	83	0.19	61.41%	12.5
May 15, 2026	0	0	0	199	8	0.04	55.45%	15