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Contract OI history

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Jan 21, 2028 EXPIRATION

SMR $18.00 Put

SMR280121P00018000

Latest saved OI859Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SMR $18.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8674330 2026-10-02: 752 OI2026-10-05: 752 OI2026-10-06: 752 OI2026-10-07: 752 OI2026-10-08: 752 OI2026-10-09: 764 OI2026-10-13: 867 OI2026-10-14: 867 OI2026-10-15: 858 OI2026-10-16: 859 OI2026-10-21: 859 OI2026-10-23: 859 OI Oct 02, 2026Oct 23, 2026

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

SMR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20268590
Oct 21, 2026Viewing8590
Oct 16, 2026859+1
Oct 15, 2026858-9
Oct 14, 20268670
Oct 13, 2026867+103
Oct 09, 2026764+12
Oct 08, 20267520
Oct 07, 20267520
Oct 06, 20267520
Oct 05, 20267520
Oct 02, 2026752No prior observation