As of previous close (2026-10-16) · OPRA historical data
Spot $266.3 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
0.91
201k P / 221k C
Put/Call (Volume)
1.56
25k P / 16k C that session
30d ATM IV
82%
annualized implied move
Call wall
$400
13k contracts
Put wall
$200
25k 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 2026-11-13. 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 |
|---|---|---|---|---|
| 2026-10-23 | 7k | 7k | 0.94 | 11k |
| 2026-10-30 | 8k | 9k | 1.23 | 3k |
| 2026-11-06 | 4k | 6k | 1.28 | 2k |
| 2026-11-13 | 1k | 2k | 1.27 | 2k |
| 2026-11-20 | 33k | 40k | 1.21 | 4k |
| 2026-11-27 | 568 | 3k | 4.59 | 1k |
| 2026-12-18 | 24k | 22k | 0.91 | 1k |
| 2027-01-15 | 38k | 31k | 0.81 | 1k |
| 2027-02-19 | 9k | 7k | 0.84 | 1k |
| 2027-03-19 | 9k | 7k | 0.72 | 381 |
| 2027-05-21 | 645 | 2k | 3.24 | 51 |
| 2027-06-17 | 20k | 21k | 1.04 | 694 |
| 2027-09-17 | 601 | 1k | 2.09 | 364 |
| 2028-01-21 | 15k | 11k | 0.78 | 194 |
| 2028-06-16 | 10k | 4k | 0.39 | 46 |
| 2028-09-15 | 103 | 55 | 0.53 | 26 |
| 2028-12-15 | 8k | 5k | 0.64 | 136 |
| 2029-01-19 | 1k | 3k | 1.72 | 74 |
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.