Delayed CBOE data, snapshot 2026-08-18. Spot $328.91.
Put/Call (OI)
0.81
2k P / 3k C
Put/Call (Volume)
1.49
131 P / 88 C today
30d ATM IV
23%
annualized implied move
Call wall
$330
304 contracts
Put wall
$280
842 contracts
Tail hedging
113.5×
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 | 878 | 0.76 | 164 |
| 2026-09-18 | 104 | 65 | 0.63 | 48 |
| 2026-11-20 | 255 | 875 | 3.43 | 3 |
| 2027-01-15 | 497 | 240 | 0.48 | 1 |
| 2027-02-19 | 588 | 52 | 0.09 | 3 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.