SGI Options Chain Analysis

As of previous close (2026-09-15) · OPRA historical data

Spot $66.76 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.10

5k P / 52k C

Put/Call (Volume)

0.01

18 P / 1k C that session

30d ATM IV

41%

annualized implied move

Call wall

$75

19k contracts

Put wall

$60

1k contracts

Tail hedging

0.1×

deep-OTM puts vs calls

What the positioning says

●Bullish positioning: only 0.10 puts per call outstanding.
●Call wall at $75 (19k contracts), 12% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $60 (1k contracts), 10% below spot — the hedge floor; often acts as support.
●Deep-OTM call OI is 14.2× 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 2026-10-16. 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
2026-10-16	856	959	1.12	19
2026-11-20	28k	551	0.02	753
2026-12-18	548	299	0.55	14
2027-01-15	1k	586	0.40	2
2027-02-19	2k	1k	0.56	0
2027-03-19	338	44	0.13	3

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.