GSK Options Chain Analysis

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

Spot $47.34 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.65

22k P / 34k C

Put/Call (Volume)

0.56

456 P / 816 C that session

30d ATM IV

32%

annualized implied move

Call wall

$60

7k contracts

Put wall

$45

5k contracts

Tail hedging

0.4×

deep-OTM puts vs calls

What the positioning says

●Bullish positioning: only 0.65 puts per call outstanding.
●Call wall at $60 (7k contracts), 27% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $45 (5k contracts), 5% below spot — the hedge floor; often acts as support.
●Deep-OTM call OI is 2.3× 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	502	168	0.33	153
2026-10-16	2k	1k	0.50	157
2026-10-23	233	109	0.47	52
2026-10-30	167	135	0.81	10
2026-11-06	55	23	0.42	10
2026-11-13	0	0	—	0
2026-11-20	10k	3k	0.33	204
2027-01-15	9k	8k	0.82	261
2027-02-19	2k	5k	2.48	62
2027-05-21	102	278	2.73	18
2028-01-21	7k	4k	0.57	105
2029-01-19	614	160	0.26	164

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.