Delayed CBOE data, snapshot 2026-08-18. Spot $94.33.
Put/Call (OI)
1.29
130k P / 101k C
Put/Call (Volume)
17.69
20k P / 1k C today
30d ATM IV
29%
annualized implied move
Call wall
$100
20k contracts
Put wall
$80
84k contracts
Tail hedging
1.6×
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 | 15k | 40k | 2.67 | 440 |
| 2026-09-18 | 36k | 69k | 1.94 | 637 |
| 2026-10-16 | 11k | 7k | 0.67 | 20k |
| 2027-01-15 | 30k | 12k | 0.41 | 117 |
| 2027-03-19 | 24 | 2 | 0.08 | 12 |
| 2027-06-17 | 20 | 38 | 1.90 | 14 |
| 2027-09-17 | 1 | 0 | 0.00 | 5 |
| 2027-12-17 | 0 | 64 | — | 32 |
| 2028-01-21 | 9k | 2k | 0.18 | 93 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.