Delayed CBOE data, snapshot 2026-08-18. Spot $110.52.
Put/Call (OI)
0.33
3k P / 8k C
Put/Call (Volume)
0.26
18 P / 68 C today
30d ATM IV
18%
annualized implied move
Call wall
$120
2k contracts
Put wall
$110
2k contracts
Tail hedging
0.1×
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 | 4k | 558 | 0.15 | 26 |
| 2026-09-18 | 2k | 2k | 0.89 | 21 |
| 2026-10-16 | 1k | 59 | 0.05 | 10 |
| 2026-11-20 | 668 | 198 | 0.30 | 3 |
| 2027-01-15 | 379 | 80 | 0.21 | 26 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.