As of previous close (2026-08-27) · OPRA historical data
Spot $23.35 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
0.87
140k P / 160k C
Put/Call (Volume)
0.43
1k P / 3k C that session
30d ATM IV
41%
annualized implied move
Call wall
$25
19k contracts
Put wall
$18
22k contracts
Tail hedging
1.0×
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 2026-09-25. 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 that session |
|---|---|---|---|---|
| 2026-10-02 | 230 | 168 | 0.73 | 264 |
| 2026-10-16 | 1k | 599 | 0.49 | 424 |
| 2026-11-20 | 12k | 8k | 0.64 | 170 |
| 2026-12-18 | 17k | 18k | 1.07 | 18 |
| 2027-01-15 | 40k | 29k | 0.71 | 156 |
| 2027-02-19 | 1k | 980 | 0.85 | 135 |
| 2027-03-19 | 8k | 13k | 1.59 | 18 |
| 2027-06-17 | 1k | 2k | 1.36 | 4 |
| 2027-09-17 | 57 | 2 | 0.04 | 20 |
| 2027-12-17 | 6k | 9k | 1.54 | 9 |
| 2028-01-21 | 21k | 13k | 0.62 | 26 |
Source: Cboe end-of-session option chains, summarized after each US market close and published from the following trading day — OPRA historical data. Under the OPRA plan options data becomes historical, and freely publishable, at the opening of the next trading session; data from the session in progress is never displayed or served here. Open interest is exchange-reported once a day. Research, not investment advice.