Delayed CBOE data, snapshot 2026-08-18. Spot $247.97.
Put/Call (OI)
0.52
5k P / 9k C
Put/Call (Volume)
0.60
148 P / 247 C today
30d ATM IV
30%
annualized implied move
Call wall
$250
1k contracts
Put wall
$230
702 contracts
Tail hedging
0.7×
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 | 2k | 2k | 0.74 | 117 |
| 2026-09-18 | 1k | 556 | 0.48 | 159 |
| 2026-10-16 | 2k | 2k | 0.85 | 49 |
| 2026-11-20 | 22 | 0 | 0.00 | 0 |
| 2026-12-18 | 2k | 593 | 0.25 | 4 |
| 2027-01-15 | 2k | 390 | 0.26 | 66 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.