Delayed CBOE data, snapshot 2026-08-18. Spot $102.51.
Put/Call (OI)
0.86
181k P / 211k C
Put/Call (Volume)
0.66
8k P / 13k C today
30d ATM IV
24%
annualized implied move
Call wall
$120
32k contracts
Put wall
$100
23k contracts
Tail hedging
0.7×
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 | 42k | 24k | 0.58 | 9k |
| 2026-08-28 | 4k | 5k | 1.21 | 1k |
| 2026-09-04 | 3k | 843 | 0.26 | 2k |
| 2026-09-11 | 734 | 723 | 0.99 | 629 |
| 2026-09-18 | 28k | 37k | 1.34 | 3k |
| 2026-09-25 | 414 | 342 | 0.83 | 92 |
| 2026-10-02 | 8 | 3 | 0.38 | 51 |
| 2026-10-16 | 11k | 9k | 0.82 | 600 |
| 2026-11-20 | 11k | 3k | 0.27 | 782 |
| 2026-12-18 | 14k | 20k | 1.43 | 602 |
| 2027-01-15 | 71k | 54k | 0.77 | 2k |
| 2027-03-19 | 6k | 6k | 1.09 | 194 |
| 2027-06-17 | 3k | 3k | 1.02 | 202 |
| 2027-09-17 | 2k | 3k | 1.28 | 550 |
| 2028-01-21 | 16k | 15k | 0.95 | 795 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.