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Contract OI history

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Sep 17, 2027 EXPIRATION

O $52.50 Put

O270917P00052500

Latest saved OI451Oct 23, 2026
Last change+1vs 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. 4512250 2026-10-02: 170 OI2026-10-05: 236 OI2026-10-06: 251 OI2026-10-07: 251 OI2026-10-08: 244 OI2026-10-09: 244 OI2026-10-13: 223 OI2026-10-14: 228 OI2026-10-15: 316 OI2026-10-16: 316 OI2026-10-21: 450 OI2026-10-23: 451 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, 2026Viewing451+1
Oct 21, 2026450+134
Oct 16, 20263160
Oct 15, 2026316+88
Oct 14, 2026228+5
Oct 13, 2026223-21
Oct 09, 20262440
Oct 08, 2026244-7
Oct 07, 20262510
Oct 06, 2026251+15
Oct 05, 2026236+66
Oct 02, 2026170No prior observation