Delayed CBOE data, snapshot 2026-08-18. Spot $82.49.
Put/Call (OI)
0.71
449k P / 634k C
Put/Call (Volume)
0.51
39k P / 76k C today
30d ATM IV
79%
annualized implied move
Call wall
$100
53k contracts
Put wall
$60
50k contracts
Tail hedging
0.9×
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 | 113k | 59k | 0.53 | 61k |
| 2026-08-28 | 19k | 11k | 0.57 | 13k |
| 2026-09-04 | 7k | 7k | 1.00 | 5k |
| 2026-09-11 | 4k | 5k | 1.32 | 2k |
| 2026-09-18 | 57k | 40k | 0.69 | 15k |
| 2026-09-25 | 3k | 4k | 1.45 | 2k |
| 2026-10-02 | 73 | 127 | 1.74 | 979 |
| 2026-10-16 | 45k | 36k | 0.81 | 5k |
| 2026-12-18 | 63k | 69k | 1.11 | 4k |
| 2027-01-15 | 139k | 103k | 0.74 | 2k |
| 2027-03-19 | 25k | 21k | 0.84 | 472 |
| 2027-06-17 | 17k | 11k | 0.64 | 2k |
| 2028-01-21 | 131k | 76k | 0.58 | 1k |
| 2028-06-16 | 552 | 823 | 1.49 | 174 |
| 2028-12-15 | 11k | 5k | 0.45 | 1k |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.