Delayed CBOE data, snapshot 2026-08-18. Spot $45.57.
Put/Call (OI)
0.52
18k P / 34k C
Put/Call (Volume)
0.18
256 P / 1k C today
30d ATM IV
20%
annualized implied move
Call wall
$50
12k contracts
Put wall
$43
6k contracts
Tail hedging
0.8×
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 | 9k | 2k | 0.19 | 143 |
| 2026-09-18 | 12k | 2k | 0.20 | 113 |
| 2026-10-16 | 2k | 6k | 2.79 | 3 |
| 2026-12-18 | 2k | 688 | 0.40 | 120 |
| 2027-01-15 | 9k | 6k | 0.72 | 1k |
| 2027-03-19 | 468 | 200 | 0.43 | 0 |
| 2027-06-17 | 168 | 128 | 0.76 | 1 |
| 2028-01-21 | 939 | 936 | 1.00 | 1 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.