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Contract OI history

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Dec 18, 2026 EXPIRATION

EW $72.50 Put

EW261218P00072500

Latest saved OI550Oct 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 $72.50 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. 5502750 2026-10-02: 541 OI2026-10-05: 541 OI2026-10-06: 541 OI2026-10-07: 541 OI2026-10-08: 541 OI2026-10-09: 541 OI2026-10-13: 541 OI2026-10-14: 541 OI2026-10-15: 541 OI2026-10-16: 541 OI2026-10-21: 547 OI2026-10-23: 550 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, 2026Viewing550+3
Oct 21, 2026547+6
Oct 16, 20265410
Oct 15, 20265410
Oct 14, 20265410
Oct 13, 20265410
Oct 09, 20265410
Oct 08, 20265410
Oct 07, 20265410
Oct 06, 20265410
Oct 05, 20265410
Oct 02, 2026541No prior observation