Delayed CBOE data, snapshot 2026-08-18. Spot $293.15.
Put/Call (OI)
1.02
227k P / 222k C
Put/Call (Volume)
2.14
18k P / 8k C today
30d ATM IV
59%
annualized implied move
Call wall
$340
9k contracts
Put wall
$210
23k contracts
Tail hedging
2.1×
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 | 32k | 58k | 1.84 | 9k |
| 2026-08-28 | 6k | 11k | 2.03 | 3k |
| 2026-09-04 | 5k | 2k | 0.44 | 949 |
| 2026-09-11 | 1k | 1k | 0.89 | 544 |
| 2026-09-18 | 28k | 51k | 1.82 | 2k |
| 2026-09-25 | 401 | 406 | 1.01 | 337 |
| 2026-10-02 | 19 | 28 | 1.47 | 8k |
| 2026-10-16 | 9k | 12k | 1.38 | 688 |
| 2026-11-20 | 13k | 12k | 0.95 | 552 |
| 2026-12-18 | 7k | 10k | 1.47 | 1k |
| 2027-01-15 | 86k | 39k | 0.45 | 450 |
| 2027-03-19 | 8k | 7k | 0.87 | 94 |
| 2027-06-17 | 8k | 6k | 0.81 | 79 |
| 2028-01-21 | 18k | 13k | 0.73 | 192 |
| 2028-06-16 | 410 | 801 | 1.95 | 53 |
| 2028-12-15 | 677 | 2k | 2.51 | 29 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.