As of previous close (2026-10-02) · OPRA historical data
Spot $505.89 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
0.79
38k P / 48k C
Put/Call (Volume)
0.76
2k P / 2k C that session
30d ATM IV
31%
annualized implied move
Call wall
$600
4k contracts
Put wall
$500
3k 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 2026-10-30. 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 |
|---|---|---|---|---|
| 2026-10-09 | 2k | 1k | 0.61 | 1k |
| 2026-10-16 | 4k | 3k | 0.77 | 745 |
| 2026-10-23 | 1k | 3k | 2.27 | 222 |
| 2026-10-30 | 710 | 1k | 1.52 | 112 |
| 2026-11-06 | 95 | 136 | 1.43 | 44 |
| 2026-11-13 | 25 | 32 | 1.28 | 33 |
| 2026-11-20 | 5k | 4k | 0.71 | 371 |
| 2026-12-18 | 7k | 6k | 0.93 | 149 |
| 2027-01-15 | 12k | 11k | 0.86 | 203 |
| 2027-03-19 | 3k | 2k | 0.60 | 118 |
| 2027-05-21 | 2k | 1k | 0.57 | 31 |
| 2027-06-17 | 1k | 1k | 0.68 | 48 |
| 2027-09-17 | 604 | 335 | 0.55 | 47 |
| 2028-01-21 | 6k | 3k | 0.56 | 122 |
| 2029-01-19 | 98 | 86 | 0.88 | 30 |
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.