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Contract OI history

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Dec 18, 2026 EXPIRATION

TLSA $2.50 Call

TLSA261218C00002500

Latest saved OI2,448Oct 23, 2026
Last change+4vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TLSA $2.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,4481,2240 2026-10-09: 2,308 OI2026-10-13: 2,430 OI2026-10-14: 2,432 OI2026-10-16: 2,432 OI2026-10-21: 2,444 OI2026-10-23: 2,448 OI Oct 09, 2026Oct 23, 2026

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

TLSA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20262,448+4
Oct 21, 2026Viewing2,444+12
Oct 16, 20262,4320
Oct 14, 20262,432+2
Oct 13, 20262,430+122
Oct 09, 20262,308No prior observation