Delayed CBOE data, snapshot 2026-08-17. Spot $670.54.
Put/Call (OI)
0.37
2k P / 5k C
Put/Call (Volume)
2.31
97 P / 42 C today
30d ATM IV
35%
annualized implied move
Call wall
$680
562 contracts
Put wall
$570
255 contracts
Tail hedging
8.8×
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 | 824 | 338 | 0.41 | 28 |
| 2026-09-18 | 858 | 767 | 0.89 | 37 |
| 2026-12-18 | 3k | 677 | 0.21 | 51 |
| 2027-03-19 | 190 | 89 | 0.47 | 23 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.