STRF Options Chain Analysis

As of previous close (2026-09-02) · OPRA historical data

Spot $99.57 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.80

632 P / 789 C

Put/Call (Volume)

0.83

15 P / 18 C that session

30d ATM IV

22%

annualized implied move

Call wall

$105

234 contracts

Put wall

$90

337 contracts

Tail hedging

0.8×

deep-OTM puts vs calls

What the positioning says

●Call wall at $105 (234 contracts), 5% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $90 (337 contracts), 10% below spot — the hedge floor; often acts as support.
●30-day ATM implied volatility is 22% — 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 2026-09-18. 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
2026-09-18	82	20	0.24	1
2026-10-16	368	297	0.81	1
2027-01-15	215	96	0.45	22
2027-04-16	0	0	—	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.