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Contract OI history

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Jan 21, 2028 EXPIRATION

TAP $40.00 Put

TAP280121P00040000

Latest saved OI1,312Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TAP $40.00 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. 1,3126560 2026-10-02: 1,306 OI2026-10-05: 1,299 OI2026-10-06: 1,302 OI2026-10-07: 1,302 OI2026-10-08: 1,302 OI2026-10-09: 1,302 OI2026-10-13: 1,312 OI2026-10-14: 1,312 OI2026-10-15: 1,312 OI2026-10-16: 1,312 OI2026-10-21: 1,312 OI2026-10-23: 1,312 OI Oct 02, 2026Oct 23, 2026

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

TAP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,3120
Oct 21, 20261,3120
Oct 16, 20261,3120
Oct 15, 20261,3120
Oct 14, 20261,3120
Oct 13, 20261,312+10
Oct 09, 20261,3020
Oct 08, 20261,3020
Oct 07, 20261,3020
Oct 06, 20261,302+3
Oct 05, 20261,299-7
Oct 02, 20261,306No prior observation