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Contract OI history

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Dec 18, 2026 EXPIRATION

OPRX $7.50 Put

OPRX261218P00007500

Latest saved OI851Oct 23, 2026
Last change-5vs previous saved observation
Saved market days7Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
OPRX $7.50 put open interest history 7 saved observations from 2026-10-07 to 2026-10-23. Exact values and changes are listed in the table below. 8564280 2026-10-07: 356 OI2026-10-09: 856 OI2026-10-13: 856 OI2026-10-14: 856 OI2026-10-16: 856 OI2026-10-20: 856 OI2026-10-23: 851 OI Oct 07, 2026Oct 23, 2026

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

OPRX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing851-5
Oct 20, 20268560
Oct 16, 20268560
Oct 14, 20268560
Oct 13, 20268560
Oct 09, 2026856+500
Oct 07, 2026356No prior observation