Delayed CBOE data, snapshot 2026-08-18. Spot $155.71.
Put/Call (OI)
1.18
99k P / 84k C
Put/Call (Volume)
0.51
2k P / 4k C today
30d ATM IV
45%
annualized implied move
Call wall
$170
6k contracts
Put wall
$155
8k contracts
Tail hedging
3.2×
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 | 14k | 19k | 1.38 | 2k |
| 2026-08-28 | 1k | 1k | 1.04 | 326 |
| 2026-09-04 | 532 | 356 | 0.67 | 89 |
| 2026-09-11 | 305 | 487 | 1.60 | 271 |
| 2026-09-18 | 21k | 29k | 1.36 | 1k |
| 2026-09-25 | 183 | 108 | 0.59 | 282 |
| 2026-10-02 | 3 | 36 | 12.00 | 33 |
| 2026-10-16 | 3k | 2k | 0.83 | 395 |
| 2026-12-18 | 11k | 11k | 1.07 | 188 |
| 2027-01-15 | 24k | 22k | 0.92 | 708 |
| 2027-03-19 | 3k | 7k | 2.16 | 192 |
| 2027-06-17 | 917 | 741 | 0.81 | 69 |
| 2027-09-17 | 2k | 2k | 0.89 | 68 |
| 2028-01-21 | 3k | 4k | 1.25 | 411 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.