SO Options Chain Analysis

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

Spot $83.72 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.68

41k P / 60k C

Put/Call (Volume)

0.44

2k P / 5k C that session

30d ATM IV

19%

annualized implied move

Call wall

$100

11k contracts

Put wall

$70

6k 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 $100 (11k contracts), 19% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $70 (6k contracts), 16% below spot — the hedge floor; often acts as support.
●Deep-OTM call OI is 2.7× deep-OTM put OI — speculative upside positioning dominates the tails.
●30-day ATM implied volatility is 19% — calm pricing; option premium is cheap.

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.

30-day implied volatility history

Daily ATM IV (~30 DTE bucket) collected since March 2026. Rising IV into an event = the market bracing; collapsing IV after = the crush.

Open interest by expiry

Expiry	Call OI	Put OI	P/C	Volume that session
2026-10-09	2k	570	0.32	413
2026-10-16	9k	4k	0.44	402
2026-10-23	1k	1k	1.10	2k
2026-10-30	1k	734	0.63	265
2026-11-06	137	82	0.60	3
2026-11-13	0	10	—	0
2026-11-20	10k	7k	0.75	2k
2026-12-18	8k	5k	0.67	522
2027-01-15	14k	9k	0.66	575
2027-02-19	857	779	0.91	94
2027-03-19	6k	4k	0.59	272
2027-05-21	77	37	0.48	6
2027-06-17	1k	703	0.67	214
2027-09-17	551	4k	7.57	284
2028-01-21	3k	1k	0.34	125
2029-01-19	569	208	0.37	10

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.