Delayed CBOE data, snapshot 2026-08-19. Spot $461.88.
Put/Call (OI)
1.23
387k P / 315k C
Put/Call (Volume)
1.58
48k P / 31k C today
30d ATM IV
82%
annualized implied move
Call wall
$500
18k contracts
Put wall
$100
19k contracts
Tail hedging
4.2×
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 | 49k | 62k | 1.28 | 34k |
| 2026-08-28 | 11k | 16k | 1.37 | 11k |
| 2026-09-04 | 8k | 5k | 0.68 | 7k |
| 2026-09-11 | 2k | 2k | 1.09 | 910 |
| 2026-09-18 | 88k | 62k | 0.71 | 9k |
| 2026-09-25 | 718 | 1k | 1.54 | 355 |
| 2026-10-02 | 120 | 177 | 1.48 | 610 |
| 2026-10-16 | 11k | 14k | 1.29 | 6k |
| 2026-11-20 | 9k | 8k | 0.95 | 588 |
| 2026-12-18 | 22k | 43k | 1.94 | 4k |
| 2027-01-15 | 42k | 74k | 1.77 | 672 |
| 2027-03-19 | 15k | 18k | 1.19 | 280 |
| 2027-06-17 | 12k | 18k | 1.56 | 644 |
| 2027-09-17 | 5k | 5k | 1.13 | 228 |
| 2027-12-17 | 12k | 19k | 1.60 | 123 |
| 2028-01-21 | 18k | 25k | 1.42 | 3k |
| 2028-06-16 | 3k | 925 | 0.36 | 1k |
| 2028-12-15 | 10k | 13k | 1.29 | 360 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.