Delayed CBOE data, snapshot 2026-08-18. Spot $141.34.
Put/Call (OI)
1.47
52k P / 36k C
Put/Call (Volume)
0.87
349 P / 399 C today
30d ATM IV
41%
annualized implied move
Call wall
$145
7k contracts
Put wall
$120
8k contracts
Tail hedging
6.0×
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 | 17k | 4k | 0.22 | 267 |
| 2026-08-28 | 335 | 58 | 0.17 | 102 |
| 2026-09-04 | 27 | 43 | 1.59 | 17 |
| 2026-09-11 | 55 | 4 | 0.07 | 5 |
| 2026-09-18 | 5k | 13k | 2.53 | 101 |
| 2026-09-25 | 30 | 6 | 0.20 | 0 |
| 2026-10-02 | 2 | 3 | 1.50 | 1 |
| 2026-11-20 | 1k | 1k | 0.97 | 63 |
| 2026-12-18 | 1k | 3k | 2.43 | 0 |
| 2027-01-15 | 6k | 24k | 4.13 | 81 |
| 2027-02-19 | 2k | 2k | 0.95 | 6 |
| 2027-03-19 | 544 | 745 | 1.37 | 2 |
| 2027-06-17 | 462 | 2k | 3.47 | 7 |
| 2028-01-21 | 1k | 2k | 1.89 | 96 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.