Delayed CBOE data, snapshot 2026-08-18. Spot $368.2.
Put/Call (OI)
0.54
3k P / 5k C
Put/Call (Volume)
2.89
179 P / 62 C today
30d ATM IV
32%
annualized implied move
Call wall
$400
2k contracts
Put wall
$290
785 contracts
Tail hedging
4.8×
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 | 3k | 990 | 0.37 | 61 |
| 2026-09-18 | 314 | 74 | 0.24 | 166 |
| 2026-10-16 | 887 | 247 | 0.28 | 4 |
| 2026-11-20 | 0 | 0 | — | 4 |
| 2026-12-18 | 842 | 820 | 0.97 | 6 |
| 2027-01-15 | 704 | 819 | 1.16 | 0 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.