Delayed CBOE data, snapshot 2026-08-18. Spot $326.12.
Put/Call (OI)
1.10
18k P / 16k C
Put/Call (Volume)
0.38
299 P / 794 C today
30d ATM IV
24%
annualized implied move
Call wall
$340
1k contracts
Put wall
$290
2k 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 | 1.04 | 199 |
| 2026-08-28 | 96 | 71 | 0.74 | 249 |
| 2026-09-04 | 43 | 42 | 0.98 | 21 |
| 2026-09-11 | 160 | 641 | 4.01 | 2 |
| 2026-09-18 | 4k | 7k | 1.61 | 174 |
| 2026-09-25 | 5 | 15 | 3.00 | 182 |
| 2026-10-02 | 0 | 0 | — | 0 |
| 2026-10-16 | 2k | 1k | 0.85 | 27 |
| 2026-12-18 | 2k | 1k | 0.81 | 99 |
| 2027-01-15 | 4k | 4k | 1.07 | 61 |
| 2027-03-19 | 1k | 382 | 0.35 | 36 |
| 2027-06-17 | 563 | 220 | 0.39 | 3 |
| 2028-01-21 | 1k | 879 | 0.77 | 40 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.