CBOE Options Chain Analysis

As of previous close (2026-10-02) · OPRA historical data

Spot $271.26 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.68

20k P / 30k C

Put/Call (Volume)

1.08

2k P / 2k C that session

30d ATM IV

41%

annualized implied move

Call wall

$330

3k contracts

Put wall

$250

2k contracts

Tail hedging

0.4×

deep-OTM puts vs calls

What the positioning says

●Bullish positioning: only 0.68 puts per call outstanding.
●Call wall at $330 (3k contracts), 22% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $250 (2k contracts), 8% below spot — the hedge floor; often acts as support.
●Deep-OTM call OI is 2.8× deep-OTM put OI — speculative upside positioning dominates the tails.

Open interest by strike

All expiries combined. Amber lines mark the call and put walls; the dashed line is spot.

IV term structure

At-the-money implied volatility per expiry.

Volatility smile

IV by strike — expiry 2026-10-30. A steep left side = expensive downside protection.

Open interest by expiry

Expiry	Call OI	Put OI	P/C	Volume that session
2026-10-09	575	1k	1.84	661
2026-10-16	2k	2k	0.86	1k
2026-10-23	366	487	1.33	34
2026-10-30	173	917	5.30	36
2026-11-06	27	147	5.44	4
2026-11-13	1	5	5.00	15
2026-11-20	511	985	1.93	67
2026-12-18	3k	3k	0.93	90
2027-01-15	10k	5k	0.51	104
2027-03-19	1k	664	0.53	14
2027-06-17	2k	2k	0.90	302
2028-01-21	6k	1k	0.20	33
2028-06-16	1k	265	0.26	6
2028-12-15	666	350	0.53	8
2029-01-19	37	124	3.35	0

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.