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

Explore the ASX 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 ASX.

Market Sentiment from ASX Options by Expiration Date

The table below aggregates ASX 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 7409 11335 18744 1.530
2026-11-20 31158 3703 34861 0.119
2026-12-18 6444 13375 19819 2.076
2027-01-15 12233 7244 19477 0.592
2027-03-19 12368 9904 22272 0.801
2028-12-15 6411 553 6964 0.086
2029-01-19 460 71 531 0.154

How the Options Sentiment Score Is Calculated

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