Delayed CBOE data, snapshot 2026-08-18. Spot $105.49.
Put/Call (OI)
0.51
106k P / 206k C
Put/Call (Volume)
0.92
3k P / 3k C today
30d ATM IV
52%
annualized implied move
Call wall
$110
24k contracts
Put wall
$65
11k contracts
Tail hedging
1.1×
deep-OTM puts vs calls
All expiries combined. Amber lines mark the call and put walls; the dashed line is spot.
At-the-money implied volatility per expiry.
IV by strike — expiry 2026-09-18. A steep left side = expensive downside protection.
Daily ATM IV (~30 DTE bucket) collected since March 2026. Rising IV into an event = the market bracing; collapsing IV after = the crush.
| Expiry | Call OI | Put OI | P/C | Volume today |
|---|---|---|---|---|
| 2026-08-21 | 25k | 17k | 0.70 | 2k |
| 2026-08-28 | 3k | 2k | 0.57 | 574 |
| 2026-09-04 | 456 | 434 | 0.95 | 227 |
| 2026-09-11 | 245 | 159 | 0.65 | 200 |
| 2026-09-18 | 46k | 29k | 0.63 | 788 |
| 2026-09-25 | 121 | 350 | 2.89 | 58 |
| 2026-10-02 | 44 | 1 | 0.02 | 17 |
| 2026-11-20 | 33k | 5k | 0.14 | 204 |
| 2026-12-18 | 20k | 13k | 0.65 | 186 |
| 2027-01-15 | 50k | 29k | 0.58 | 863 |
| 2027-02-19 | 775 | 538 | 0.69 | 229 |
| 2027-03-19 | 3k | 2k | 0.78 | 149 |
| 2027-06-17 | 14k | 3k | 0.20 | 311 |
| 2028-01-21 | 11k | 4k | 0.40 | 69 |
| 2028-12-15 | 163 | 61 | 0.37 | 36 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.