Delayed CBOE data, snapshot 2026-08-18. Spot $372.96.
Put/Call (OI)
0.58
2k P / 3k C
Put/Call (Volume)
1.10
33 P / 30 C today
30d ATM IV
37%
annualized implied move
Call wall
$380
376 contracts
Put wall
$320
315 contracts
Tail hedging
3.1×
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 | 1k | 1k | 0.92 | 37 |
| 2026-09-18 | 1k | 179 | 0.18 | 2 |
| 2026-10-16 | 123 | 134 | 1.09 | 10 |
| 2026-11-20 | 141 | 204 | 1.45 | 8 |
| 2026-12-18 | 128 | 146 | 1.14 | 3 |
| 2027-01-15 | 468 | 49 | 0.10 | 0 |
| 2027-03-19 | 50 | 21 | 0.42 | 0 |
| 2027-04-16 | 90 | 60 | 0.67 | 2 |
| 2027-05-21 | 5 | 0 | 0.00 | 1 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.