Delayed CBOE data, snapshot 2026-08-18. Spot $42.59.
Put/Call (OI)
0.70
352k P / 504k C
Put/Call (Volume)
0.39
10k P / 26k C today
30d ATM IV
43%
annualized implied move
Call wall
$60
51k contracts
Put wall
$30
47k contracts
Tail hedging
1.5×
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.
| Expiry | Call OI | Put OI | P/C | Volume today |
|---|---|---|---|---|
| 2026-08-21 | 39k | 22k | 0.58 | 7k |
| 2026-08-28 | 4k | 3k | 0.77 | 2k |
| 2026-09-04 | 2k | 3k | 1.55 | 955 |
| 2026-09-11 | 2k | 3k | 1.40 | 220 |
| 2026-09-18 | 75k | 61k | 0.81 | 5k |
| 2026-09-25 | 1k | 3k | 2.72 | 496 |
| 2026-10-02 | 4 | 53 | 13.25 | 373 |
| 2026-10-16 | 39k | 26k | 0.66 | 2k |
| 2026-12-18 | 119k | 34k | 0.29 | 9k |
| 2027-01-15 | 135k | 123k | 0.91 | 7k |
| 2027-03-19 | 18k | 26k | 1.47 | 532 |
| 2027-06-17 | 13k | 23k | 1.78 | 259 |
| 2028-01-21 | 51k | 22k | 0.43 | 372 |
| 2028-12-15 | 8k | 4k | 0.54 | 716 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.