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Contract OI history

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Jan 21, 2028 EXPIRATION

TSM $250.00 Put

TSM280121P00250000

Latest saved OI621Oct 23, 2026
Last change+72vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $250.00 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. 6213100 2026-10-02: 619 OI2026-10-05: 619 OI2026-10-06: 541 OI2026-10-07: 541 OI2026-10-08: 541 OI2026-10-09: 541 OI2026-10-14: 541 OI2026-10-15: 541 OI2026-10-16: 546 OI2026-10-21: 549 OI2026-10-23: 621 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, 2026Viewing621+72
Oct 21, 2026549+3
Oct 16, 2026546+5
Oct 15, 20265410
Oct 14, 20265410
Oct 09, 20265410
Oct 08, 20265410
Oct 07, 20265410
Oct 06, 2026541-78
Oct 05, 20266190
Oct 02, 2026619No prior observation