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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $530.00 Put

TSM261218P00530000

Latest saved OI0Oct 23, 2026
Last change-9vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $530.00 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. 135670 2026-10-02: 129 OI2026-10-05: 129 OI2026-10-06: 130 OI2026-10-07: 130 OI2026-10-08: 130 OI2026-10-09: 135 OI2026-10-14: 135 OI2026-10-15: 135 OI2026-10-16: 1 OI2026-10-21: 9 OI2026-10-23: 0 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, 2026Viewing0-9
Oct 21, 20269+8
Oct 16, 20261-134
Oct 15, 20261350
Oct 14, 20261350
Oct 09, 2026135+5
Oct 08, 20261300
Oct 07, 20261300
Oct 06, 2026130+1
Oct 05, 20261290
Oct 02, 2026129No prior observation