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Contract OI history

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Apr 16, 2027 EXPIRATION

TK $17.50 Call

TK270416C00017500

Latest saved OI420Oct 23, 2026
Last change-5vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TK $17.50 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. 4252120 2026-10-02: 312 OI2026-10-05: 312 OI2026-10-06: 312 OI2026-10-07: 377 OI2026-10-08: 399 OI2026-10-09: 409 OI2026-10-13: 411 OI2026-10-14: 411 OI2026-10-16: 425 OI2026-10-20: 425 OI2026-10-23: 420 OI Oct 02, 2026Oct 23, 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 23, 2026420-5
Oct 20, 2026Viewing4250
Oct 16, 2026425+14
Oct 14, 20264110
Oct 13, 2026411+2
Oct 09, 2026409+10
Oct 08, 2026399+22
Oct 07, 2026377+65
Oct 06, 20263120
Oct 05, 20263120
Oct 02, 2026312No prior observation