STLA Options Chain Analysis

As of previous close (2026-09-11) · OPRA historical data

Spot $5.39 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.40

112k P / 283k C

Put/Call (Volume)

0.22

474 P / 2k C that session

30d ATM IV

40%

annualized implied move

Call wall

$10

70k contracts

Put wall

30k contracts

Tail hedging

0.1×

deep-OTM puts vs calls

What the positioning says

●Bullish positioning: only 0.40 puts per call outstanding.
●Call wall at $10 (70k contracts), 85% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $5 (30k contracts), 7% below spot — the hedge floor; often acts as support.
●Deep-OTM call OI is 18.8× 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 2026-10-09. A steep left side = expensive downside protection.

Open interest by expiry

Expiry	Call OI	Put OI	P/C	Volume that session
2026-09-18	27k	15k	0.53	211
2026-09-25	1k	4k	2.55	44
2026-10-02	2k	167	0.07	186
2026-10-09	616	158	0.26	144
2026-10-16	3k	2k	0.59	117
2026-10-23	631	9	0.01	218
2026-10-30	0	61	—	33
2026-12-18	22k	20k	0.92	164
2027-01-15	94k	27k	0.29	210
2027-03-19	5k	3k	0.47	600
2027-06-17	30k	12k	0.41	127
2028-01-21	92k	28k	0.31	407

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.