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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $270.00 Put

TSM261023P00270000

Latest saved OI138Oct 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 $270.00 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. 138690 2026-10-02: 108 OI2026-10-05: 124 OI2026-10-06: 128 OI2026-10-07: 137 OI2026-10-08: 137 OI2026-10-09: 137 OI2026-10-14: 137 OI2026-10-15: 137 OI2026-10-16: 137 OI2026-10-21: 138 OI2026-10-23: 138 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, 2026Viewing1380
Oct 21, 2026138+1
Oct 16, 20261370
Oct 15, 20261370
Oct 14, 20261370
Oct 09, 20261370
Oct 08, 20261370
Oct 07, 2026137+9
Oct 06, 2026128+4
Oct 05, 2026124+16
Oct 02, 2026108No prior observation