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Contract OI history

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Dec 18, 2026 EXPIRATION

TOST $37.00 Call

TOST261218C00037000

Latest saved OI1,455Oct 23, 2026
Last change+67vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $37.00 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. 1,4557270 2026-10-02: 1,097 OI2026-10-05: 1,110 OI2026-10-06: 1,107 OI2026-10-07: 1,107 OI2026-10-08: 1,107 OI2026-10-09: 1,122 OI2026-10-13: 1,368 OI2026-10-14: 1,368 OI2026-10-15: 1,375 OI2026-10-16: 1,379 OI2026-10-21: 1,388 OI2026-10-23: 1,455 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, 20261,455+67
Oct 21, 2026Viewing1,388+9
Oct 16, 20261,379+4
Oct 15, 20261,375+7
Oct 14, 20261,3680
Oct 13, 20261,368+246
Oct 09, 20261,122+15
Oct 08, 20261,1070
Oct 07, 20261,1070
Oct 06, 20261,107-3
Oct 05, 20261,110+13
Oct 02, 20261,097No prior observation