Options Chain for ENERGY RECOVERY INC COM (ERII) - $11.07 as of 5/1/2026 2:05:01 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 | 7.90 | 9.50 | 8.70 | % | 3.48 | 0 | 0 | 9.95 | 1.00 | 0.00 | 0.00 | 5/1/2026 4:00:06 PM EST | |||
| 5.00 | 5.40 | 7.10 | 6.25 | % | 1.25 | 0 | 0 | 5.77 | 1.00 | 0.00 | 0.00 | 5/1/2026 4:00:06 PM EST | |||
| 7.50 | 3.10 | 4.50 | 3.80 | 3.95 | 0.00 | 0.00% | 0.51 | 0 | 41 | 3.33 | 0.97 | 0.03 | -0.01 | 4/27/2026 | 5/1/2026 4:00:06 PM EST |
| 10.00 | 1.30 | 1.60 | 1.45 | 1.40 | +0.10 | +7.70% | 0.14 | 2 | 106 | 0.96 | 0.72 | 0.14 | -0.03 | 5/1/2026 | 5/1/2026 4:00:06 PM EST |
| 12.50 | 0.30 | 0.75 | 0.53 | 0.36 | -0.08 | -18.19% | 0.04 | 249 | 858 | 1.18 | 0.33 | 0.15 | -0.03 | 5/1/2026 | 5/1/2026 4:00:06 PM EST |
| 15.00 | 0.00 | 0.15 | 0.08 | 0.15 | 0.00 | 0.00% | 0.01 | 0 | 160 | 1.24 | 0.10 | 0.07 | -0.02 | 4/27/2026 | 5/1/2026 4:00:06 PM EST |
| 17.50 | 0.00 | 0.75 | 0.38 | 0.05 | 0.00 | 0.00% | 0.02 | 0 | 214 | 2.69 | 0.02 | 0.02 | 0.00 | 4/9/2026 | 5/1/2026 4:00:06 PM EST |
| 20.00 | 0.00 | 0.75 | 0.38 | 0.11 | 0.00 | 0.00% | 0.02 | 0 | 2,086 | 3.09 | 0.01 | 0.01 | 0.00 | 4/7/2026 | 5/1/2026 4:00:06 PM EST |
| 22.50 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 7 | 3.43 | 0.00 | 0.00 | 0.00 | 5/1/2026 4:00:06 PM EST | |||
| 25.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 101 | 3.71 | 0.00 | 0.00 | 0.00 | 5/1/2026 4:00:06 PM EST | |||
| 30.00 | 0.00 | 0.75 | 0.38 | % | 0.01 | 0 | 73 | 4.18 | 0.00 | 0.00 | 0.00 | 5/1/2026 4:00:06 PM 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 | 0.02 | 0.00 | 0.00% | 0.15 | 0 | 2 | 8.65 | 0.00 | 0.00 | 0.00 | 4/30/2026 | 5/1/2026 4:00:06 PM EST |
| 5.00 | 0.00 | 0.75 | 0.38 | % | 0.08 | 0 | 0 | 4.86 | 0.00 | 0.00 | 0.00 | 5/1/2026 4:00:06 PM EST | |||
| 7.50 | 0.00 | 0.75 | 0.38 | 0.10 | 0.00 | 0.00% | 0.05 | 0 | 2 | 2.91 | -0.03 | 0.03 | -0.01 | 4/20/2026 | 5/1/2026 4:00:06 PM EST |
| 10.00 | 0.40 | 0.80 | 0.60 | 0.60 | +0.18 | +42.86% | 0.06 | 22 | 547 | 1.28 | -0.28 | 0.14 | -0.03 | 5/1/2026 | 5/1/2026 4:00:06 PM EST |
| 12.50 | 1.25 | 2.20 | 1.73 | 2.05 | 0.00 | 0.00% | 0.14 | 0 | 64 | 1.46 | -0.67 | 0.15 | -0.03 | 4/27/2026 | 5/1/2026 4:00:06 PM EST |
| 15.00 | 3.40 | 4.60 | 4.00 | 4.55 | 0.00 | 0.00% | 0.27 | 0 | 22 | 2.03 | -0.90 | 0.07 | -0.02 | 4/21/2026 | 5/1/2026 4:00:06 PM EST |
| 17.50 | 5.60 | 7.10 | 6.35 | % | 0.36 | 0 | 0 | 2.53 | -0.98 | 0.02 | 0.00 | 5/1/2026 4:00:06 PM EST | |||
| 20.00 | 8.10 | 9.60 | 8.85 | % | 0.44 | 0 | 0 | 2.93 | -0.99 | 0.01 | 0.00 | 5/1/2026 4:00:06 PM EST | |||
| 22.50 | 10.30 | 12.60 | 11.45 | % | 0.51 | 0 | 0 | 3.99 | -1.00 | 0.00 | 0.00 | 5/1/2026 4:00:06 PM EST | |||
| 25.00 | 12.80 | 15.10 | 13.95 | % | 0.56 | 0 | 0 | 4.30 | -1.00 | 0.00 | 0.00 | 5/1/2026 4:00:06 PM EST | |||
| 30.00 | 17.80 | 20.10 | 18.95 | % | 0.63 | 0 | 0 | 4.80 | -1.00 | 0.00 | 0.00 | 5/1/2026 4:00:06 PM EST |