Delayed CBOE data, snapshot 2026-08-18. Spot $396.
Put/Call (OI)
0.92
7k P / 8k C
Put/Call (Volume)
0.25
95 P / 386 C today
30d ATM IV
34%
annualized implied move
Call wall
$450
788 contracts
Put wall
$360
803 contracts
Tail hedging
0.9×
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 | 3k | 3k | 1.08 | 365 |
| 2026-09-18 | 608 | 778 | 1.28 | 58 |
| 2026-10-16 | 1k | 738 | 0.58 | 6 |
| 2026-11-20 | 273 | 1k | 3.67 | 3 |
| 2026-12-18 | 1k | 862 | 0.73 | 8 |
| 2027-01-15 | 593 | 121 | 0.20 | 6 |
| 2027-02-19 | 391 | 230 | 0.59 | 3 |
| 2027-05-21 | 105 | 10 | 0.10 | 5 |
| 2027-08-20 | 37 | 6 | 0.16 | 1 |
| 2027-11-19 | 312 | 129 | 0.41 | 26 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.