Delayed CBOE data, snapshot 2026-08-18. Spot $81.55.
Put/Call (OI)
0.49
30k P / 60k C
Put/Call (Volume)
0.27
535 P / 2k C today
30d ATM IV
27%
annualized implied move
Call wall
$85
7k contracts
Put wall
$45
3k contracts
Tail hedging
1.3×
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 | 11k | 4k | 0.38 | 425 |
| 2026-09-18 | 11k | 6k | 0.52 | 760 |
| 2026-10-16 | 2k | 818 | 0.44 | 764 |
| 2026-11-20 | 402 | 27 | 0.07 | 96 |
| 2026-12-18 | 7k | 2k | 0.33 | 70 |
| 2027-01-15 | 17k | 11k | 0.64 | 95 |
| 2027-03-19 | 3k | 2k | 0.60 | 67 |
| 2027-06-17 | 843 | 554 | 0.66 | 82 |
| 2028-01-21 | 8k | 3k | 0.38 | 140 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.