Unusual Options Activity
ERII Unusual Options Activity - Energy Recovery
- Last active day
- June 18, 2026
- Active days (30d)
- 4
- Biggest recent print
- Call $10.0000 · $232K
AI summary
On June 18, 2026, Energy Recovery, Inc. (ERII) saw notable options activity with a single print recorded. A call option was executed for the strike price of $10.00, set to expire on July 17, 2026, with a premium of $231,516. This transaction reflects a volume to open interest ratio of 3.6, indicating a relatively active position compared to existing open interest. In the last 30 days, ERII has had four active days in the options market, with no put options traded during this period. The significant call premium suggests a concentrated interest in this particular strike and expiration date, contributing to the overall market dynamics for ERII.
AI-generated summary
ERII was last active on June 18, 2026.
Prints on June 18, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| ERII | Call | $10.0000 | 07/17/26 (30d) | 3.6× | $232K | 68% |
History
- 2026-06-181 prints$232K calls$0K puts
- 2026-06-171 prints$232K calls$0K puts
- 2026-06-162 prints$333K calls$0K puts
- 2026-06-152 prints$333K calls$0K puts
- 2026-03-251 prints$66K calls$0K puts
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