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Contract OI history

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Nov 20, 2026 EXPIRATION

TOST $35.00 Call

TOST261120C00035000

Latest saved OI1,610Oct 23, 2026
Last change+320vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $35.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,6108050 2026-10-02: 422 OI2026-10-05: 543 OI2026-10-06: 543 OI2026-10-07: 607 OI2026-10-08: 607 OI2026-10-09: 618 OI2026-10-13: 623 OI2026-10-14: 623 OI2026-10-15: 617 OI2026-10-16: 890 OI2026-10-21: 1,290 OI2026-10-23: 1,610 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

TOST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,610+320
Oct 21, 2026Viewing1,290+400
Oct 16, 2026890+273
Oct 15, 2026617-6
Oct 14, 20266230
Oct 13, 2026623+5
Oct 09, 2026618+11
Oct 08, 20266070
Oct 07, 2026607+64
Oct 06, 20265430
Oct 05, 2026543+121
Oct 02, 2026422No prior observation