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

Explore the BSX 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 BSX.

Market Sentiment from BSX Options by Expiration Date

The table below aggregates BSX 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
2026-10-02 13011 6472 19483 0.497
2026-10-09 3932 2631 6563 0.669
2026-10-16 21540 25683 47223 1.192
2026-10-23 1518 4362 5880 2.874
2026-10-30 1311 2773 4084 2.115
2026-11-06 41 91 132 2.220
2026-11-20 33730 23800 57530 0.706
2026-12-18 332039 69502 401541 0.209
2027-01-15 89779 27937 117716 0.311
2027-02-19 3125 8448 11573 2.703
2027-03-19 22193 14548 36741 0.656
2027-05-21 655 302 957 0.461
2027-06-17 36129 21435 57564 0.593
2027-09-17 1630 7517 9147 4.612
2028-01-21 54464 30179 84643 0.554
2029-01-19 469 1206 1675 2.571

How the Options Sentiment Score Is Calculated

This sentiment framework evaluates market bias for BSX 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 BSX.
  • 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 BSX options, while lower scores highlight more defensive or bearish structures.