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Contract OI history

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Jan 15, 2027 EXPIRATION

OSCR $21.00 Put

OSCR270115P00021000

Latest saved OI1,906Oct 23, 2026
Last change-7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
OSCR $21.00 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. 1,9139560 2026-10-02: 1,896 OI2026-10-05: 1,896 OI2026-10-06: 1,886 OI2026-10-07: 1,887 OI2026-10-08: 1,887 OI2026-10-09: 1,887 OI2026-10-13: 1,886 OI2026-10-14: 1,886 OI2026-10-15: 1,886 OI2026-10-16: 1,913 OI2026-10-21: 1,913 OI2026-10-23: 1,906 OI Oct 02, 2026Oct 23, 2026

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

OSCR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,906-7
Oct 21, 20261,9130
Oct 16, 20261,913+27
Oct 15, 20261,8860
Oct 14, 20261,8860
Oct 13, 20261,886-1
Oct 09, 20261,8870
Oct 08, 20261,8870
Oct 07, 20261,887+1
Oct 06, 20261,886-10
Oct 05, 20261,8960
Oct 02, 20261,896No prior observation