Delayed CBOE data, snapshot 2026-08-18. Spot $134.54.
Put/Call (OI)
0.66
108k P / 163k C
Put/Call (Volume)
10.06
22k P / 2k C today
30d ATM IV
35%
annualized implied move
Call wall
$250
26k contracts
Put wall
$110
15k contracts
Tail hedging
0.7×
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 | 9k | 11k | 1.31 | 1k |
| 2026-08-28 | 392 | 4k | 9.22 | 511 |
| 2026-09-04 | 140 | 80 | 0.57 | 88 |
| 2026-09-11 | 607 | 42 | 0.07 | 77 |
| 2026-09-18 | 18k | 22k | 1.23 | 1k |
| 2026-09-25 | 101 | 12 | 0.12 | 2 |
| 2026-10-02 | 9 | 0 | 0.00 | 2 |
| 2026-10-16 | 5k | 4k | 0.76 | 20k |
| 2026-11-20 | 4k | 1k | 0.35 | 479 |
| 2026-12-18 | 9k | 8k | 0.93 | 253 |
| 2027-01-15 | 97k | 35k | 0.36 | 147 |
| 2027-03-19 | 5k | 7k | 1.53 | 49 |
| 2027-06-17 | 562 | 1k | 2.23 | 19 |
| 2028-01-21 | 15k | 14k | 0.91 | 86 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.