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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $350.00 Put

TSM261030P00350000

Latest saved OI470Oct 23, 2026
Last change+254vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $350.00 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. 4702350 2026-10-02: 228 OI2026-10-05: 172 OI2026-10-06: 156 OI2026-10-07: 157 OI2026-10-08: 157 OI2026-10-09: 150 OI2026-10-14: 153 OI2026-10-15: 158 OI2026-10-16: 168 OI2026-10-21: 216 OI2026-10-23: 470 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, 2026Viewing470+254
Oct 21, 2026216+48
Oct 16, 2026168+10
Oct 15, 2026158+5
Oct 14, 2026153+3
Oct 09, 2026150-7
Oct 08, 20261570
Oct 07, 2026157+1
Oct 06, 2026156-16
Oct 05, 2026172-56
Oct 02, 2026228No prior observation