Delayed CBOE data, snapshot 2026-08-17. Spot $339.45.
Put/Call (OI)
0.74
2.5M P / 3.3M C
Put/Call (Volume)
0.77
947k P / 1.2M C today
30d ATM IV
39%
annualized implied move
Call wall
$400
153k contracts
Put wall
$300
133k 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 |
|---|---|---|---|---|
| 2026-08-19 | 38k | 21k | 0.56 | 290k |
| 2026-08-21 | 435k | 286k | 0.66 | 256k |
| 2026-08-24 | 13k | 7k | 0.56 | 25k |
| 2026-08-26 | 5k | 2k | 0.49 | 7k |
| 2026-08-28 | 73k | 75k | 1.03 | 49k |
| 2026-08-31 | 0 | 0 | — | 4k |
| 2026-09-04 | 30k | 22k | 0.74 | 16k |
| 2026-09-11 | 22k | 10k | 0.46 | 7k |
| 2026-09-18 | 366k | 294k | 0.80 | 43k |
| 2026-09-25 | 8k | 8k | 0.92 | 6k |
| 2026-10-02 | 2k | 923 | 0.61 | 3k |
| 2026-10-16 | 123k | 155k | 1.26 | 15k |
| 2026-11-20 | 133k | 149k | 1.12 | 17k |
| 2026-12-18 | 364k | 318k | 0.87 | 11k |
| 2027-01-15 | 638k | 297k | 0.47 | 11k |
| 2027-02-19 | 17k | 18k | 1.05 | 3k |
| 2027-03-19 | 67k | 94k | 1.42 | 3k |
| 2027-06-17 | 301k | 166k | 0.55 | 5k |
| 2027-09-17 | 18k | 19k | 1.03 | 853 |
| 2027-12-17 | 211k | 183k | 0.87 | 1k |
| 2028-01-21 | 141k | 89k | 0.63 | 1k |
| 2028-06-16 | 69k | 38k | 0.55 | 737 |
| 2028-12-15 | 160k | 149k | 0.93 | 3k |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.