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Contract OI history

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Apr 16, 2027 EXPIRATION

OPCH $32.50 Call

OPCH270416C00032500

Latest saved OI572Oct 23, 2026
Last change+4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OPCH $32.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 5722860 2026-10-09: 411 OI2026-10-13: 492 OI2026-10-14: 493 OI2026-10-15: 543 OI2026-10-16: 543 OI2026-10-21: 568 OI2026-10-23: 572 OI Oct 09, 2026Oct 23, 2026

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

OPCH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing572+4
Oct 21, 2026568+25
Oct 16, 20265430
Oct 15, 2026543+50
Oct 14, 2026493+1
Oct 13, 2026492+81
Oct 09, 2026411No prior observation