Delayed CBOE data, snapshot 2026-08-18. Spot $24.81.
Put/Call (OI)
0.61
156k P / 256k C
Put/Call (Volume)
0.86
6k P / 7k C today
30d ATM IV
27%
annualized implied move
Call wall
$25
55k contracts
Put wall
$22.5
40k contracts
Tail hedging
0.4×
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 | 65k | 27k | 0.41 | 5k |
| 2026-08-28 | 6k | 3k | 0.44 | 2k |
| 2026-09-04 | 1k | 1k | 0.89 | 1k |
| 2026-09-11 | 3k | 1k | 0.39 | 962 |
| 2026-09-18 | 36k | 34k | 0.94 | 1k |
| 2026-09-25 | 428 | 472 | 1.10 | 198 |
| 2026-10-02 | 125 | 5 | 0.04 | 109 |
| 2026-10-16 | 18k | 8k | 0.43 | 1k |
| 2026-12-18 | 31k | 23k | 0.74 | 463 |
| 2027-01-15 | 59k | 31k | 0.53 | 144 |
| 2027-03-19 | 5k | 5k | 0.94 | 80 |
| 2027-06-17 | 6k | 6k | 0.97 | 843 |
| 2028-01-21 | 26k | 17k | 0.67 | 162 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.