Delayed CBOE data, snapshot 2026-08-18. Spot $677.27.
Put/Call (OI)
1.14
1k P / 931 C
Put/Call (Volume)
0.32
6 P / 19 C today
30d ATM IV
27%
annualized implied move
Call wall
$700
109 contracts
Put wall
$600
603 contracts
Tail hedging
7.2×
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 | 259 | 842 | 3.25 | 15 |
| 2026-09-18 | 277 | 79 | 0.29 | 4 |
| 2026-11-20 | 263 | 60 | 0.23 | 4 |
| 2026-12-18 | 48 | 28 | 0.58 | 1 |
| 2027-01-15 | 26 | 20 | 0.77 | 0 |
| 2027-03-19 | 25 | 28 | 1.12 | 1 |
| 2027-05-21 | 33 | 7 | 0.21 | 0 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.