Delayed CBOE data, snapshot 2026-08-18. Spot $87.58.
Put/Call (OI)
1.49
585k P / 393k C
Put/Call (Volume)
1.01
76k P / 75k C today
30d ATM IV
22%
annualized implied move
Call wall
$90
44k contracts
Put wall
$75
57k contracts
Tail hedging
3.5×
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 | 57k | 70k | 1.24 | 9k |
| 2026-08-28 | 6k | 3k | 0.48 | 3k |
| 2026-09-04 | 3k | 1k | 0.41 | 905 |
| 2026-09-11 | 1k | 1k | 0.85 | 269 |
| 2026-09-18 | 60k | 86k | 1.43 | 5k |
| 2026-09-25 | 251 | 885 | 3.53 | 183 |
| 2026-10-02 | 16 | 0 | 0.00 | 142 |
| 2026-10-16 | 26k | 36k | 1.38 | 2k |
| 2026-11-20 | 25k | 35k | 1.38 | 1k |
| 2026-12-18 | 34k | 81k | 2.40 | 123k |
| 2027-01-15 | 85k | 154k | 1.81 | 4k |
| 2027-03-19 | 20k | 30k | 1.52 | 502 |
| 2027-06-17 | 41k | 31k | 0.75 | 1k |
| 2027-12-17 | 7k | 12k | 1.89 | 296 |
| 2028-01-21 | 17k | 30k | 1.80 | 244 |
| 2028-12-15 | 11k | 13k | 1.25 | 29 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.