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Contract OI history

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Dec 18, 2026 EXPIRATION

SPG $185.00 Put

SPG261218P00185000

Latest saved OI518Oct 23, 2026
Last change-4vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SPG $185.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5222610 2026-10-02: 114 OI2026-10-05: 116 OI2026-10-06: 116 OI2026-10-07: 116 OI2026-10-08: 456 OI2026-10-09: 462 OI2026-10-14: 519 OI2026-10-15: 520 OI2026-10-16: 520 OI2026-10-21: 522 OI2026-10-23: 518 OI Oct 02, 2026Oct 23, 2026

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

SPG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing518-4
Oct 21, 2026522+2
Oct 16, 20265200
Oct 15, 2026520+1
Oct 14, 2026519+57
Oct 09, 2026462+6
Oct 08, 2026456+340
Oct 07, 20261160
Oct 06, 20261160
Oct 05, 2026116+2
Oct 02, 2026114No prior observation