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.

Options Analysis Short-Term Forecast Short Interest Report

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
2026-09-25	652	1075	1727	1.649
2026-10-02	954	407	1361	0.427
2026-10-09	268	223	491	0.832
2026-10-16	2640	1363	4003	0.516
2026-10-23	99	670	769	6.768
2026-10-30	130	53	183	0.408
2026-11-20	192	60	252	0.312
2026-12-18	7930	3426	11356	0.432
2027-01-15	5955	4516	10471	0.758
2027-03-19	91	188	279	2.066
2027-04-16	1	139	140	139.000
2027-06-17	172	200	372	1.163
2027-09-17	28	200	228	7.143
2028-01-21	1543	881	2424	0.571
2029-01-19	0	10	10	10.000
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.