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Contract OI history

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Dec 18, 2026 EXPIRATION

TAC $20.00 Call

TAC261218C00020000

Latest saved OI190Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TAC $20.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 190950 2026-10-02: 190 OI2026-10-05: 190 OI2026-10-06: 190 OI2026-10-07: 190 OI2026-10-08: 190 OI2026-10-09: 190 OI2026-10-13: 190 OI2026-10-14: 190 OI2026-10-16: 190 OI2026-10-21: 190 OI2026-10-23: 190 OI Oct 02, 2026Oct 23, 2026

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

TAC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261900
Oct 21, 2026Viewing1900
Oct 16, 20261900
Oct 14, 20261900
Oct 13, 20261900
Oct 09, 20261900
Oct 08, 20261900
Oct 07, 20261900
Oct 06, 20261900
Oct 05, 20261900
Oct 02, 2026190No prior observation