Delayed CBOE data, snapshot 2026-08-18. Spot $244.45.
Put/Call (OI)
0.43
14k P / 32k C
Put/Call (Volume)
0.72
957 P / 1k C today
30d ATM IV
49%
annualized implied move
Call wall
$250
3k contracts
Put wall
$150
1k contracts
Tail hedging
2.2×
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 | 4k | 3k | 0.65 | 690 |
| 2026-09-18 | 10k | 4k | 0.46 | 801 |
| 2026-12-18 | 2k | 2k | 0.85 | 427 |
| 2027-01-15 | 6k | 2k | 0.33 | 171 |
| 2027-03-19 | 4k | 696 | 0.16 | 30 |
| 2027-06-17 | 3k | 772 | 0.22 | 32 |
| 2028-01-21 | 2k | 1k | 0.64 | 78 |
| 2028-12-15 | 102 | 111 | 1.09 | 59 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.