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Contract OI history

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Apr 16, 2027 EXPIRATION

TFSL $17.50 Call

TFSL270416C00017500

Latest saved OI690Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
TFSL $17.50 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 6903450 2026-10-08: 657 OI2026-10-09: 657 OI2026-10-13: 657 OI2026-10-14: 657 OI2026-10-16: 657 OI2026-10-21: 690 OI2026-10-23: 690 OI Oct 08, 2026Oct 23, 2026

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

TFSL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20266900
Oct 21, 2026Viewing690+33
Oct 16, 20266570
Oct 14, 20266570
Oct 13, 20266570
Oct 09, 20266570
Oct 08, 2026657No prior observation