Delayed CBOE data, snapshot 2026-08-18. Spot $239.5.
Put/Call (OI)
1.16
11k P / 10k C
Put/Call (Volume)
0.97
211 P / 217 C today
30d ATM IV
37%
annualized implied move
Call wall
$240
1k contracts
Put wall
$200
2k contracts
Tail hedging
3.1×
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.
| Expiry | Call OI | Put OI | P/C | Volume today |
|---|---|---|---|---|
| 2026-08-21 | 2k | 3k | 1.21 | 79 |
| 2026-09-18 | 1k | 1k | 1.05 | 186 |
| 2026-10-16 | 2k | 2k | 1.04 | 53 |
| 2027-01-15 | 4k | 5k | 1.21 | 110 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.