OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

TK $12.50 Put

TK270115P00012500

Latest saved OI241Oct 20, 2026
Last change+40vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TK $12.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 2411200 2026-10-02: 21 OI2026-10-05: 21 OI2026-10-06: 21 OI2026-10-07: 51 OI2026-10-08: 51 OI2026-10-09: 51 OI2026-10-13: 61 OI2026-10-14: 101 OI2026-10-16: 201 OI2026-10-20: 241 OI Oct 02, 2026Oct 20, 2026

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

TK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing241+40
Oct 16, 2026201+100
Oct 14, 2026101+40
Oct 13, 202661+10
Oct 09, 2026510
Oct 08, 2026510
Oct 07, 202651+30
Oct 06, 2026210
Oct 05, 2026210
Oct 02, 202621No prior observation