Options Chain for ENERGY RECOVERY INC COM (ERII) - $7.99 as of 8/11/2026 7:08:15 PM EST
Calls
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.50 | 4.80 | 5.90 | 5.35 | 6.00 | 0.00 | 0.00% | 2.14 | 0 | 1 | 8.54 | 1.00 | 0.00 | 0.00 | 6/12/2026 | 8/12/2026 9:59:15 AM EST |
| 5.00 | 2.20 | 3.40 | 2.80 | 3.00 | 0.00 | 0.00% | 0.56 | 0 | 9 | 4.12 | 1.00 | 0.00 | 0.00 | 7/16/2026 | 8/12/2026 9:59:15 AM EST |
| 7.50 | 0.15 | 0.65 | 0.40 | 1.69 | 0.00 | 0.00% | 0.05 | 0 | 425 | 1.30 | 0.65 | 0.38 | -0.02 | 8/5/2026 | 8/12/2026 9:59:15 AM EST |
| 10.00 | 0.00 | 0.10 | 0.05 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 1,333 | 1.28 | 0.03 | 0.07 | 0.00 | 8/11/2026 | 8/12/2026 9:59:15 AM EST |
| 12.50 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 2,498 | 2.23 | 0.00 | 0.00 | 0.00 | 8/10/2026 | 8/12/2026 9:59:15 AM EST |
| 15.00 | 0.00 | 0.15 | 0.08 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 164 | 2.80 | 0.00 | 0.00 | 0.00 | 8/10/2026 | 8/12/2026 9:59:15 AM EST |
| 17.50 | 0.00 | 0.95 | 0.48 | 0.05 | 0.00 | 0.00% | 0.03 | 0 | 41 | 5.54 | 0.00 | 0.00 | 0.00 | 8/7/2026 | 8/12/2026 9:59:15 AM EST |
| 20.00 | 0.00 | 0.75 | 0.38 | 0.12 | 0.00 | 0.00% | 0.02 | 0 | 134 | 5.52 | 0.00 | 0.00 | 0.00 | 7/22/2026 | 8/12/2026 9:59:15 AM EST |
| 22.50 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 11 | 5.89 | 0.00 | 0.00 | 0.00 | 8/12/2026 9:59:15 AM EST | |||
| 25.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 6 | 6.21 | 0.00 | 0.00 | 0.00 | 8/12/2026 9:59:15 AM EST | |||
| 30.00 | 0.00 | 0.20 | 0.10 | 0.20 | 0.00 | 0.00% | 0.00 | 0 | 31 | 0.00 | 0.00 | 0.00 | 0.00 | 5/19/2026 | 8/12/2026 9:59:15 AM EST |
Puts
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.50 | 0.00 | 0.75 | 0.38 | % | 0.15 | 0 | 0 | 9.56 | 0.00 | 0.00 | 0.00 | 8/12/2026 9:59:15 AM EST | |||
| 5.00 | 0.00 | 0.35 | 0.18 | 0.10 | 0.00 | 0.00% | 0.04 | 0 | 1 | 3.29 | 0.00 | 0.00 | 0.00 | 8/10/2026 | 8/12/2026 9:59:15 AM EST |
| 7.50 | 0.00 | 0.75 | 0.38 | 0.10 | 0.00 | 0.00% | 0.05 | 0 | 946 | 1.86 | -0.35 | 0.38 | -0.02 | 8/11/2026 | 8/12/2026 9:59:15 AM EST |
| 10.00 | 1.85 | 2.60 | 2.23 | 1.70 | 0.00 | 0.00% | 0.22 | 0 | 98 | 2.16 | -0.97 | 0.07 | 0.00 | 8/6/2026 | 8/12/2026 9:59:15 AM EST |
| 12.50 | 3.90 | 5.50 | 4.70 | 3.70 | 0.00 | 0.00% | 0.38 | 0 | 3 | 4.00 | -1.00 | 0.00 | 0.00 | 8/5/2026 | 8/12/2026 9:59:15 AM EST |
| 15.00 | 6.40 | 8.10 | 7.25 | % | 0.48 | 0 | 5 | 4.92 | -1.00 | 0.00 | 0.00 | 8/12/2026 9:59:15 AM EST | |||
| 17.50 | 8.70 | 10.60 | 9.65 | % | 0.55 | 0 | 0 | 5.48 | -1.00 | 0.00 | 0.00 | 8/12/2026 9:59:15 AM EST | |||
| 20.00 | 11.00 | 13.40 | 12.20 | 11.49 | 0.00 | 0.00% | 0.61 | 0 | 1 | 6.60 | -1.00 | 0.00 | 0.00 | 6/16/2026 | 8/12/2026 9:59:15 AM EST |
| 22.50 | 13.50 | 15.90 | 14.70 | % | 0.65 | 0 | 0 | 6.99 | -1.00 | 0.00 | 0.00 | 8/12/2026 9:59:15 AM EST | |||
| 25.00 | 16.00 | 18.40 | 17.20 | % | 0.69 | 0 | 0 | 7.33 | -1.00 | 0.00 | 0.00 | 8/12/2026 9:59:15 AM EST | |||
| 30.00 | 21.00 | 23.40 | 22.20 | % | 0.74 | 0 | 0 | 7.89 | -1.00 | 0.00 | 0.00 | 8/12/2026 9:59:15 AM EST |