Delayed CBOE data, snapshot 2026-08-19. Spot $246.15.
Put/Call (OI)
0.92
138k P / 151k C
Put/Call (Volume)
1.00
5k P / 5k C today
30d ATM IV
54%
annualized implied move
Call wall
$300
12k contracts
Put wall
$180
11k contracts
Tail hedging
1.9×
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 | 27k | 26k | 0.96 | 2k |
| 2026-08-28 | 3k | 4k | 1.15 | 949 |
| 2026-09-04 | 1k | 2k | 1.48 | 350 |
| 2026-09-11 | 467 | 1k | 2.64 | 170 |
| 2026-09-18 | 35k | 34k | 0.99 | 844 |
| 2026-09-25 | 308 | 793 | 2.57 | 43 |
| 2026-10-02 | 34 | 45 | 1.32 | 43 |
| 2026-10-16 | 10k | 8k | 0.74 | 629 |
| 2026-11-20 | 6k | 5k | 0.95 | 396 |
| 2026-12-18 | 17k | 10k | 0.57 | 403 |
| 2027-01-15 | 24k | 25k | 1.02 | 396 |
| 2027-03-19 | 6k | 6k | 1.05 | 863 |
| 2027-06-17 | 2k | 3k | 2.05 | 258 |
| 2028-01-21 | 11k | 9k | 0.80 | 947 |
| 2028-06-16 | 3k | 2k | 0.56 | 591 |
| 2028-12-15 | 4k | 2k | 0.51 | 552 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.