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Contract OI history

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Jan 15, 2027 EXPIRATION

ARDT $7.50 Put

ARDT270115P00007500

Latest saved OI180Oct 21, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ARDT $7.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 180900 2026-10-02: 180 OI2026-10-05: 180 OI2026-10-06: 180 OI2026-10-07: 180 OI2026-10-08: 180 OI2026-10-09: 180 OI2026-10-13: 180 OI2026-10-14: 180 OI2026-10-15: 180 OI2026-10-16: 180 OI2026-10-21: 180 OI Oct 02, 2026Oct 21, 2026

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

ARDT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing1800
Oct 16, 20261800
Oct 15, 20261800
Oct 14, 20261800
Oct 13, 20261800
Oct 09, 20261800
Oct 08, 20261800
Oct 07, 20261800
Oct 06, 20261800
Oct 05, 20261800
Oct 02, 2026180No prior observation