Energy Recovery (ERII) Options Chain
NASDAQ: ERIITechnologyIndustrial Machinery/ComponentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Feb 19, 2027
- Days to expiration
- 131
- Share price
- $6.84
- Put/call ratio (OI)
- 15.74
- Put/call ratio (volume)
- 0.39
- Expected move
- ±$2.40
- Open interest (C / P)
- 638 / 10.04K
ERII options summary
The ERII options chain for the February 19, 2027 expiration lists 7 call and 4 put contracts, with 131 days until expiration. Open interest stands at 638 calls and 10,041 puts, a put/call ratio of 15.74, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $7.50 strike is 58.6%, which implies the market expects a move of about ±$2.40 (35.1%) in Energy Recovery stock by expiration.
The most open interest sits at the $10.00 call (254 contracts) and the $7.50 put (10.04K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ERII options chain · February 19, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 6.70 | 3.90 | 6.60 | 2.50 | — | — | — | |||||
| 3.20 | 1.80 | 2.50 | 5.00 | — | — | — | |||||
| 0.65 | 0.60 | 1.05 | 7.50 | 1.05 | 1.45 | 1.25 | |||||
| 0.05 | 0.10 | 0.50 | 10.00 | 0.00 | 0.00 | 2.65 | |||||
| 0.07 | 0.00 | 0.75 | 12.50 | — | — | — | |||||
| 0.18 | 0.00 | 0.00 | 15.00 | 0.00 | 0.00 | 8.00 | |||||
| 0.05 | 0.00 | 0.75 | 17.50 | 0.00 | 0.00 | 10.40 | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the ERII put/call ratio?
For the February 19, 2027 expiration, the ERII put/call ratio based on open interest is 15.74 (10,041 puts vs 638 calls), and 0.39 based on today's volume. A ratio above 1 means more puts than calls.
What is ERII's implied volatility?
At-the-money implied volatility for ERII options expiring February 19, 2027 is about 58.6%, an annualized estimate of how much the market expects Energy Recovery stock to move.
How many ERII option expiration dates are there?
ERII has 5 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.