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GSK Options Chain by Expiration – Open Interest & Put/Call Ratio

Explore the GSK options chain aggregated by expiration date, with call and put open interest, total OI and put/call ratios. Use this overview to spot where options positioning is most concentrated and which expirations carry bullish, bearish or neutral sentiment for GSK.

Market Sentiment from GSK Options by Expiration Date

The table below aggregates GSK options data by expiration date, including call volume, put volume, total open interest and the put/call ratio. Each row is assigned a sentiment label and numerical sentiment score, highlighting expirations where positioning is extremely bullish, defensive or balanced. Click on an expiration date to drill down into the detailed options chain for that maturity.

Expiration Date Call OI Put OI Total Open Interest Put/Call Ratio
2026-10-16 3763 1490 5253 0.396
2026-10-23 621 137 758 0.221
2026-10-30 2893 150 3043 0.052
2026-11-06 128 86 214 0.672
2026-11-13 33 15 48 0.455
2026-11-20 9757 3836 13593 0.393
2026-11-27 2 0 2 0.000
2027-01-15 9701 7717 17418 0.795
2027-02-19 1891 4633 6524 2.450
2027-05-21 227 330 557 1.454
2028-01-21 6736 3853 10589 0.572
2029-01-19 1058 339 1397 0.320

How the Options Sentiment Score Is Calculated

This sentiment framework evaluates market bias for GSK based on aggregated options data by expiration date. The key metrics are:

  • Put/Call Ratio (PCR): Compares put and call activity. A higher PCR usually indicates more defensive or bearish positioning, while a lower PCR suggests bullish call demand.
  • Open Interest (OI): Represents the number of outstanding option contracts. Higher open interest reflects strong market attention, hedging activity or speculative positioning around GSK.
  • Unusual activity ⚠️: Expirations with extreme PCR or unusually high OI are flagged with a warning icon, signaling concentrated bets, hedging pressure or potential event-driven risk.

The sentiment score combines PCR and OI into a 0–100 scale, then classifies each expiration into intuitive labels such as Strong Bullish, Moderate Bullish, Neutral, Moderate Bearish, Strong Bearish. Higher scores reflect more aggressive bullish positioning in GSK options, while lower scores highlight more defensive or bearish structures.