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Contract OI history

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Jun 16, 2028 EXPIRATION

TSM $240.00 Put

TSM280616P00240000

Latest saved OI188Oct 23, 2026
Last change+19vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $240.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 188940 2026-10-02: 154 OI2026-10-05: 154 OI2026-10-06: 164 OI2026-10-07: 165 OI2026-10-08: 165 OI2026-10-09: 166 OI2026-10-14: 166 OI2026-10-15: 166 OI2026-10-16: 166 OI2026-10-21: 169 OI2026-10-23: 188 OI Oct 02, 2026Oct 23, 2026

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

TSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing188+19
Oct 21, 2026169+3
Oct 16, 20261660
Oct 15, 20261660
Oct 14, 20261660
Oct 09, 2026166+1
Oct 08, 20261650
Oct 07, 2026165+1
Oct 06, 2026164+10
Oct 05, 20261540
Oct 02, 2026154No prior observation