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Contract OI history

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Dec 18, 2026 EXPIRATION

SM $40.00 Call

SM261218C00040000

Latest saved OI1,645Oct 23, 2026
Last change-2vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SM $40.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,6478230 2026-10-02: 1,394 OI2026-10-05: 1,393 OI2026-10-07: 1,418 OI2026-10-08: 1,569 OI2026-10-09: 1,614 OI2026-10-13: 1,618 OI2026-10-15: 1,617 OI2026-10-16: 1,627 OI2026-10-21: 1,647 OI2026-10-23: 1,645 OI Oct 02, 2026Oct 23, 2026

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

SM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,645-2
Oct 21, 20261,647+20
Oct 16, 20261,627+10
Oct 15, 20261,617-1
Oct 13, 20261,618+4
Oct 09, 20261,614+45
Oct 08, 20261,569+151
Oct 07, 20261,418+25
Oct 05, 20261,393-1
Oct 02, 20261,394No prior observation