Delayed CBOE data, snapshot 2026-08-18. Spot $109.47.
Put/Call (OI)
0.19
400 P / 2k C
Put/Call (Volume)
0.80
20 P / 25 C today
30d ATM IV
17%
annualized implied move
Call wall
$115
818 contracts
Put wall
$105
89 contracts
Tail hedging
0.5×
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 | 797 | 68 | 0.09 | 14 |
| 2026-09-18 | 1k | 216 | 0.21 | 15 |
| 2026-12-18 | 275 | 113 | 0.41 | 0 |
| 2027-03-19 | 18 | 3 | 0.17 | 16 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.