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

Explore the ALGN 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 ALGN.

Market Sentiment from ALGN Options by Expiration Date

The table below aggregates ALGN 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
2026-03-27 519 966 1485 1.861
2026-04-02 335 602 937 1.797
2026-04-10 138 67 205 0.486
2026-04-17 1561 1586 3147 1.016
2026-04-24 126 392 518 3.111
2026-05-01 29 23 52 0.793
2026-05-15 47 200 247 4.255
2026-06-18 3437 1867 5304 0.543
2026-07-17 527 416 943 0.789
2026-09-18 809 958 1767 1.184
2026-10-16 7 23 30 3.286
2026-12-18 2427 2544 4971 1.048
2027-01-15 3830 4876 8706 1.273
2027-03-19 2 62 64 31.000
2028-01-21 435 620 1055 1.425

How the Options Sentiment Score Is Calculated

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