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Contract OI history

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Dec 18, 2026 EXPIRATION

EW $77.50 Put

EW261218P00077500

Latest saved OI37Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
EW $77.50 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. 37180 2026-10-02: 22 OI2026-10-05: 22 OI2026-10-06: 22 OI2026-10-07: 22 OI2026-10-08: 22 OI2026-10-09: 22 OI2026-10-13: 22 OI2026-10-14: 22 OI2026-10-15: 22 OI2026-10-16: 31 OI2026-10-21: 34 OI2026-10-23: 37 OI Oct 02, 2026Oct 23, 2026

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

EW contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing37+3
Oct 21, 202634+3
Oct 16, 202631+9
Oct 15, 2026220
Oct 14, 2026220
Oct 13, 2026220
Oct 09, 2026220
Oct 08, 2026220
Oct 07, 2026220
Oct 06, 2026220
Oct 05, 2026220
Oct 02, 202622No prior observation