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Contract OI history

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Mar 19, 2027 EXPIRATION

TLSA $2.50 Put

TLSA270319P00002500

Latest saved OI610Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TLSA $2.50 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6103050 2026-10-09: 601 OI2026-10-13: 604 OI2026-10-14: 604 OI2026-10-16: 608 OI2026-10-21: 610 OI2026-10-23: 610 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, 20266100
Oct 21, 2026Viewing610+2
Oct 16, 2026608+4
Oct 14, 20266040
Oct 13, 2026604+3
Oct 09, 2026601No prior observation