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Contract OI history

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Dec 18, 2026 EXPIRATION

TFC $40.00 Put

TFC261218P00040000

Latest saved OI1,034Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TFC $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. 1,0395190 2026-10-02: 989 OI2026-10-05: 1,000 OI2026-10-06: 1,000 OI2026-10-07: 1,000 OI2026-10-08: 1,000 OI2026-10-09: 1,000 OI2026-10-13: 1,000 OI2026-10-14: 1,000 OI2026-10-15: 1,039 OI2026-10-16: 1,039 OI2026-10-21: 1,033 OI2026-10-23: 1,034 OI Oct 02, 2026Oct 23, 2026

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

TFC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,034+1
Oct 21, 20261,033-6
Oct 16, 20261,0390
Oct 15, 20261,039+39
Oct 14, 20261,0000
Oct 13, 20261,0000
Oct 09, 20261,0000
Oct 08, 20261,0000
Oct 07, 20261,0000
Oct 06, 20261,0000
Oct 05, 20261,000+11
Oct 02, 2026989No prior observation