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Contract OI history

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Mar 19, 2027 EXPIRATION

O $52.50 Put

O270319P00052500

Latest saved OI815Oct 23, 2026
Last change+44vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
O $52.50 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. 8154070 2026-10-02: 641 OI2026-10-05: 636 OI2026-10-06: 645 OI2026-10-07: 645 OI2026-10-08: 644 OI2026-10-09: 684 OI2026-10-13: 694 OI2026-10-14: 725 OI2026-10-15: 730 OI2026-10-16: 764 OI2026-10-21: 771 OI2026-10-23: 815 OI Oct 02, 2026Oct 23, 2026

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

O contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing815+44
Oct 21, 2026771+7
Oct 16, 2026764+34
Oct 15, 2026730+5
Oct 14, 2026725+31
Oct 13, 2026694+10
Oct 09, 2026684+40
Oct 08, 2026644-1
Oct 07, 20266450
Oct 06, 2026645+9
Oct 05, 2026636-5
Oct 02, 2026641No prior observation