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Contract OI history

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Jun 17, 2027 EXPIRATION

TSM $490.00 Put

TSM270617P00490000

Latest saved OI298Oct 23, 2026
Last change+1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $490.00 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. 2981490 2026-10-02: 130 OI2026-10-05: 135 OI2026-10-06: 135 OI2026-10-07: 135 OI2026-10-08: 135 OI2026-10-09: 138 OI2026-10-14: 166 OI2026-10-15: 297 OI2026-10-16: 297 OI2026-10-21: 297 OI2026-10-23: 298 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, 2026Viewing298+1
Oct 21, 20262970
Oct 16, 20262970
Oct 15, 2026297+131
Oct 14, 2026166+28
Oct 09, 2026138+3
Oct 08, 20261350
Oct 07, 20261350
Oct 06, 20261350
Oct 05, 2026135+5
Oct 02, 2026130No prior observation