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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
2026-02-06 9182 4124 13306 0.449
2026-02-13 15385 18477 33862 1.201
2026-02-20 118502 17164 135666 0.145
2026-02-27 452 449 901 0.993
2026-03-06 254 165 419 0.650
2026-03-13 99 121 220 1.222
2026-03-20 41604 52042 93646 1.251
2026-03-27 6 4 10 0.667
2026-04-17 93592 21434 115026 0.229
2026-05-15 9211 12353 21564 1.341
2026-06-18 16080 11271 27351 0.701
2026-08-21 979 695 1674 0.710
2026-09-18 4185 3806 7991 0.909
2026-12-18 2176 2885 5061 1.326
2027-01-15 11091 5083 16174 0.458
2027-06-17 2138 338 2476 0.158
2028-01-21 759 359 1118 0.473

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.