Delayed CBOE data, snapshot 2026-08-18. Spot $267.06.
Put/Call (OI)
1.35
26k P / 19k C
Put/Call (Volume)
1.57
69 P / 44 C today
30d ATM IV
32%
annualized implied move
Call wall
$270
1k contracts
Put wall
$185
5k contracts
Tail hedging
17.0×
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 | 12k | 19k | 1.61 | 30 |
| 2026-09-18 | 2k | 4k | 1.98 | 23 |
| 2026-11-20 | 1k | 1k | 0.80 | 47 |
| 2026-12-18 | 830 | 500 | 0.60 | 7 |
| 2027-01-15 | 2k | 1k | 0.57 | 2 |
| 2027-02-19 | 205 | 49 | 0.24 | 4 |
| 2028-01-21 | 953 | 509 | 0.53 | 0 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.