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Contract OI history

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Mar 19, 2027 EXPIRATION

O $50.00 Put

O270319P00050000

Latest saved OI679Oct 23, 2026
Last change+20vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
O $50.00 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. 6793390 2026-10-02: 576 OI2026-10-05: 579 OI2026-10-06: 586 OI2026-10-07: 586 OI2026-10-08: 597 OI2026-10-09: 632 OI2026-10-13: 632 OI2026-10-14: 637 OI2026-10-15: 637 OI2026-10-16: 639 OI2026-10-21: 659 OI2026-10-23: 679 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, 2026Viewing679+20
Oct 21, 2026659+20
Oct 16, 2026639+2
Oct 15, 20266370
Oct 14, 2026637+5
Oct 13, 20266320
Oct 09, 2026632+35
Oct 08, 2026597+11
Oct 07, 20265860
Oct 06, 2026586+7
Oct 05, 2026579+3
Oct 02, 2026576No prior observation