Delayed CBOE data, snapshot 2026-08-19. Spot $95.72.
Put/Call (OI)
0.99
3.0M P / 3.0M C
Put/Call (Volume)
0.70
357k P / 511k C today
30d ATM IV
63%
annualized implied move
Call wall
$110
199k contracts
Put wall
$80
151k 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 |
|---|---|---|---|---|
| 2026-08-19 | 49k | 25k | 0.51 | 185k |
| 2026-08-21 | 464k | 387k | 0.83 | 171k |
| 2026-08-24 | 8k | 4k | 0.54 | 15k |
| 2026-08-26 | 5k | 2k | 0.47 | 7k |
| 2026-08-28 | 68k | 94k | 1.39 | 81k |
| 2026-08-31 | 2k | 279 | 0.18 | 4k |
| 2026-09-02 | 0 | 0 | — | 1k |
| 2026-09-04 | 39k | 40k | 1.04 | 33k |
| 2026-09-11 | 21k | 15k | 0.71 | 13k |
| 2026-09-18 | 453k | 495k | 1.09 | 116k |
| 2026-09-25 | 12k | 6k | 0.51 | 6k |
| 2026-10-02 | 2k | 955 | 0.57 | 21k |
| 2026-10-16 | 174k | 169k | 0.97 | 46k |
| 2026-11-20 | 263k | 148k | 0.56 | 43k |
| 2026-12-18 | 399k | 413k | 1.04 | 21k |
| 2027-01-15 | 465k | 557k | 1.20 | 46k |
| 2027-02-19 | 12k | 30k | 2.43 | 15k |
| 2027-03-19 | 134k | 128k | 0.95 | 12k |
| 2027-06-17 | 57k | 115k | 2.01 | 16k |
| 2027-12-17 | 143k | 149k | 1.04 | 3k |
| 2028-01-21 | 168k | 153k | 0.91 | 6k |
| 2028-12-15 | 67k | 42k | 0.63 | 6k |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.