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Jan 19, 2029 EXPIRATION

O $55.00 Put

O290119P00055000

Latest saved OI39Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
O $55.00 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. 39190 2026-10-02: 19 OI2026-10-05: 25 OI2026-10-06: 25 OI2026-10-07: 25 OI2026-10-08: 27 OI2026-10-09: 27 OI2026-10-13: 27 OI2026-10-14: 27 OI2026-10-15: 28 OI2026-10-16: 39 OI2026-10-21: 39 OI2026-10-23: 39 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, 2026Viewing390
Oct 21, 2026390
Oct 16, 202639+11
Oct 15, 202628+1
Oct 14, 2026270
Oct 13, 2026270
Oct 09, 2026270
Oct 08, 202627+2
Oct 07, 2026250
Oct 06, 2026250
Oct 05, 202625+6
Oct 02, 202619No prior observation