Delayed CBOE data, snapshot 2026-08-19. Spot $103.95.
Put/Call (OI)
0.68
289k P / 429k C
Put/Call (Volume)
0.64
10k P / 15k C today
30d ATM IV
23%
annualized implied move
Call wall
$120
54k contracts
Put wall
$100
51k contracts
Tail hedging
0.6×
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 | 64k | 48k | 0.75 | 10k |
| 2026-08-28 | 6k | 3k | 0.50 | 3k |
| 2026-09-04 | 3k | 2k | 0.68 | 778 |
| 2026-09-11 | 2k | 1k | 0.63 | 257 |
| 2026-09-18 | 60k | 52k | 0.87 | 4k |
| 2026-09-25 | 3k | 441 | 0.15 | 325 |
| 2026-10-02 | 259 | 57 | 0.22 | 68 |
| 2026-10-16 | 20k | 28k | 1.41 | 2k |
| 2026-11-20 | 34k | 26k | 0.76 | 977 |
| 2026-12-18 | 33k | 30k | 0.91 | 754 |
| 2027-01-15 | 81k | 47k | 0.58 | 2k |
| 2027-03-19 | 13k | 12k | 0.91 | 303 |
| 2027-06-17 | 21k | 18k | 0.84 | 274 |
| 2027-12-17 | 16k | 7k | 0.44 | 36 |
| 2028-01-21 | 73k | 16k | 0.21 | 195 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.