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Contract OI history

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Nov 20, 2026 EXPIRATION

TLSA $2.50 Call

TLSA261120C00002500

Latest saved OI466Oct 23, 2026
Last change+131vs 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. 4662330 2026-10-09: 277 OI2026-10-13: 306 OI2026-10-14: 306 OI2026-10-16: 311 OI2026-10-21: 335 OI2026-10-23: 466 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, 2026466+131
Oct 21, 2026Viewing335+24
Oct 16, 2026311+5
Oct 14, 20263060
Oct 13, 2026306+29
Oct 09, 2026277No prior observation