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Contract OI history

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Jan 21, 2028 EXPIRATION

TSM $520.00 Put

TSM280121P00520000

Latest saved OI1,173Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $520.00 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. 1,1735860 2026-10-02: 448 OI2026-10-05: 448 OI2026-10-06: 448 OI2026-10-07: 1,173 OI2026-10-08: 1,173 OI2026-10-09: 1,173 OI2026-10-14: 1,173 OI2026-10-15: 1,173 OI2026-10-16: 1,173 OI2026-10-21: 1,173 OI2026-10-23: 1,173 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, 2026Viewing1,1730
Oct 21, 20261,1730
Oct 16, 20261,1730
Oct 15, 20261,1730
Oct 14, 20261,1730
Oct 09, 20261,1730
Oct 08, 20261,1730
Oct 07, 20261,173+725
Oct 06, 20264480
Oct 05, 20264480
Oct 02, 2026448No prior observation