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Contract OI history

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Dec 18, 2026 EXPIRATION

TOST $42.00 Call

TOST261218C00042000

Latest saved OI2,230Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $42.00 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. 2,2431,1210 2026-10-02: 2,114 OI2026-10-05: 2,114 OI2026-10-06: 2,235 OI2026-10-07: 2,235 OI2026-10-08: 2,235 OI2026-10-09: 2,243 OI2026-10-13: 2,243 OI2026-10-14: 2,243 OI2026-10-15: 2,231 OI2026-10-16: 2,231 OI2026-10-21: 2,230 OI2026-10-23: 2,230 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, 20262,2300
Oct 21, 2026Viewing2,230-1
Oct 16, 20262,2310
Oct 15, 20262,231-12
Oct 14, 20262,2430
Oct 13, 20262,2430
Oct 09, 20262,243+8
Oct 08, 20262,2350
Oct 07, 20262,2350
Oct 06, 20262,235+121
Oct 05, 20262,1140
Oct 02, 20262,114No prior observation