Delayed CBOE data, snapshot 2026-08-18. Spot $407.62.
Put/Call (OI)
0.63
1k P / 2k C
Put/Call (Volume)
0.05
1 P / 22 C today
30d ATM IV
27%
annualized implied move
Call wall
$560
226 contracts
Put wall
$350
414 contracts
Tail hedging
1.3×
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 | 801 | 804 | 1.00 | 8 |
| 2026-09-18 | 44 | 244 | 5.55 | 3 |
| 2026-11-20 | 212 | 118 | 0.56 | 1 |
| 2027-01-15 | 686 | 158 | 0.23 | 7 |
| 2027-02-19 | 366 | 0 | 0.00 | 4 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.