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Contract OI history

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Dec 18, 2026 EXPIRATION

ASX $27.50 Put

ASX261218P00027500

Latest saved OI1,563Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ASX $27.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,5637810 2026-10-02: 1,552 OI2026-10-05: 1,552 OI2026-10-06: 1,552 OI2026-10-07: 1,552 OI2026-10-08: 1,552 OI2026-10-09: 1,552 OI2026-10-13: 1,555 OI2026-10-14: 1,555 OI2026-10-15: 1,555 OI2026-10-16: 1,561 OI2026-10-21: 1,561 OI2026-10-23: 1,563 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ASX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,563+2
Oct 21, 20261,5610
Oct 16, 20261,561+6
Oct 15, 20261,5550
Oct 14, 20261,5550
Oct 13, 20261,555+3
Oct 09, 20261,5520
Oct 08, 20261,5520
Oct 07, 20261,5520
Oct 06, 20261,5520
Oct 05, 20261,5520
Oct 02, 20261,552No prior observation