As of previous close (2026-08-27) · OPRA historical data
Spot $100.01 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
2.31
5k P / 2k C
Put/Call (Volume)
2.33
7 P / 3 C that session
30d ATM IV
5%
annualized implied move
Call wall
$105
1k contracts
Put wall
$95
2k contracts
Tail hedging
1247.0×
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 2026-09-18. 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 that session |
|---|---|---|---|---|
| 2026-10-16 | 1k | 2k | 1.58 | 2 |
| 2027-01-15 | 466 | 903 | 1.94 | 1 |
| 2027-04-16 | 6 | 31 | 5.17 | 5 |
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.