Delayed CBOE data, snapshot 2026-08-18. Spot $252.97.
Put/Call (OI)
0.28
504 P / 2k C
Put/Call (Volume)
0.04
1 P / 24 C today
30d ATM IV
28%
annualized implied move
Call wall
$310
196 contracts
Put wall
$230
242 contracts
Tail hedging
0.5×
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 | 391 | 117 | 0.30 | 22 |
| 2026-09-18 | 362 | 220 | 0.61 | 3 |
| 2026-10-16 | 464 | 97 | 0.21 | 0 |
| 2027-01-15 | 572 | 70 | 0.12 | 0 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.