As of previous close (2026-09-29) · OPRA historical data
Spot $611.58 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
0.84
9k P / 10k C
Put/Call (Volume)
1.12
11k P / 10k C that session
30d ATM IV
60%
annualized implied move
Call wall
$1,000
765 contracts
Put wall
$600
207 contracts
Tail hedging
0.1×
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 2026-10-16. 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 | 3k | 3k | 1.02 | 13k |
| 2026-11-20 | 3k | 1k | 0.51 | 3k |
| 2026-12-18 | 1k | 936 | 0.71 | 837 |
| 2027-01-15 | 1k | 1k | 1.24 | 2k |
| 2027-03-19 | 392 | 473 | 1.21 | 674 |
| 2027-04-16 | 64 | 36 | 0.56 | 83 |
| 2027-06-17 | 220 | 254 | 1.15 | 173 |
| 2027-09-17 | 41 | 33 | 0.80 | 212 |
| 2028-01-21 | 707 | 497 | 0.70 | 680 |
| 2029-01-19 | 9 | 9 | 1.00 | 367 |
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.