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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $640.00 Call

TSM261218C00640000

Latest saved OI821Oct 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 $640.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8214100 2026-10-02: 309 OI2026-10-05: 309 OI2026-10-06: 310 OI2026-10-07: 310 OI2026-10-08: 310 OI2026-10-09: 310 OI2026-10-14: 375 OI2026-10-15: 376 OI2026-10-16: 821 OI2026-10-21: 821 OI2026-10-23: 821 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, 2026Viewing8210
Oct 21, 20268210
Oct 16, 2026821+445
Oct 15, 2026376+1
Oct 14, 2026375+65
Oct 09, 20263100
Oct 08, 20263100
Oct 07, 20263100
Oct 06, 2026310+1
Oct 05, 20263090
Oct 02, 2026309No prior observation