Delayed CBOE data, snapshot 2026-08-18. Spot $104.68.
Put/Call (OI)
1.60
4k P / 3k C
Put/Call (Volume)
0.69
223 P / 321 C today
30d ATM IV
24%
annualized implied move
Call wall
$105
892 contracts
Put wall
$90
681 contracts
Tail hedging
4.3×
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 | 107 | 2k | 16.82 | 108 |
| 2026-09-18 | 2k | 2k | 1.27 | 121 |
| 2026-12-18 | 877 | 301 | 0.34 | 315 |
| 2027-03-19 | 3 | 1 | 0.33 | 0 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.