Delayed CBOE data, snapshot 2026-08-18. Spot $196.19.
Put/Call (OI)
2.51
26k P / 10k C
Put/Call (Volume)
0.60
2k P / 3k C today
30d ATM IV
50%
annualized implied move
Call wall
$240
2k contracts
Put wall
$160
8k contracts
Tail hedging
1.6×
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 | 8k | 2.74 | 850 |
| 2026-09-18 | 3k | 12k | 3.67 | 4k |
| 2026-11-20 | 0 | 0 | — | 82 |
| 2026-12-18 | 913 | 833 | 0.91 | 61 |
| 2027-01-15 | 2k | 4k | 1.80 | 180 |
| 2027-03-19 | 463 | 48 | 0.10 | 3 |
| 2027-06-17 | 316 | 432 | 1.37 | 10 |
| 2028-01-21 | 389 | 804 | 2.07 | 47 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.