Delayed CBOE data, snapshot 2026-08-18. Spot $162.32.
Put/Call (OI)
0.89
466k P / 521k C
Put/Call (Volume)
0.71
22k P / 31k C today
30d ATM IV
43%
annualized implied move
Call wall
$200
48k contracts
Put wall
$130
30k contracts
Tail hedging
0.6×
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 | 112k | 64k | 0.58 | 19k |
| 2026-08-28 | 12k | 7k | 0.57 | 5k |
| 2026-09-04 | 10k | 4k | 0.44 | 3k |
| 2026-09-11 | 6k | 3k | 0.41 | 2k |
| 2026-09-18 | 85k | 64k | 0.76 | 8k |
| 2026-09-25 | 1k | 763 | 0.53 | 420 |
| 2026-10-02 | 256 | 18 | 0.07 | 202 |
| 2026-10-16 | 35k | 32k | 0.93 | 3k |
| 2026-11-20 | 22k | 29k | 1.32 | 2k |
| 2026-12-18 | 49k | 48k | 0.98 | 5k |
| 2027-01-15 | 102k | 112k | 1.09 | 2k |
| 2027-02-19 | 4k | 4k | 1.09 | 260 |
| 2027-03-19 | 18k | 21k | 1.13 | 1k |
| 2027-06-17 | 28k | 39k | 1.38 | 2k |
| 2028-01-21 | 31k | 34k | 1.09 | 897 |
| 2028-06-16 | 1k | 760 | 0.73 | 35 |
| 2028-12-15 | 3k | 3k | 0.96 | 585 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.