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Contract OI history

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Oct 23, 2026 EXPIRATION

TOST $31.00 Call

TOST261023C00031000

Latest saved OI950Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $31.00 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. 9544770 2026-10-02: 26 OI2026-10-05: 605 OI2026-10-06: 606 OI2026-10-07: 606 OI2026-10-08: 606 OI2026-10-09: 614 OI2026-10-13: 614 OI2026-10-14: 614 OI2026-10-15: 954 OI2026-10-16: 942 OI2026-10-21: 949 OI2026-10-23: 950 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, 2026950+1
Oct 21, 2026Viewing949+7
Oct 16, 2026942-12
Oct 15, 2026954+340
Oct 14, 20266140
Oct 13, 20266140
Oct 09, 2026614+8
Oct 08, 20266060
Oct 07, 20266060
Oct 06, 2026606+1
Oct 05, 2026605+579
Oct 02, 202626No prior observation