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Contract OI history

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Nov 20, 2026 EXPIRATION

ATO $160.00 Put

ATO261120P00160000

Latest saved OI97Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ATO $160.00 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. 97480 2026-10-02: 23 OI2026-10-05: 23 OI2026-10-06: 24 OI2026-10-07: 24 OI2026-10-08: 24 OI2026-10-09: 24 OI2026-10-13: 24 OI2026-10-14: 27 OI2026-10-15: 26 OI2026-10-16: 26 OI2026-10-21: 97 OI2026-10-23: 97 OI Oct 02, 2026Oct 23, 2026

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

ATO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing970
Oct 21, 202697+71
Oct 16, 2026260
Oct 15, 202626-1
Oct 14, 202627+3
Oct 13, 2026240
Oct 09, 2026240
Oct 08, 2026240
Oct 07, 2026240
Oct 06, 202624+1
Oct 05, 2026230
Oct 02, 202623No prior observation