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Contract OI history

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Jan 15, 2027 EXPIRATION

MCK $880.00 Put

MCK270115P00880000

Latest saved OI132Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MCK $880.00 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. 132660 2026-10-02: 119 OI2026-10-05: 118 OI2026-10-06: 118 OI2026-10-07: 119 OI2026-10-08: 119 OI2026-10-09: 121 OI2026-10-13: 125 OI2026-10-14: 128 OI2026-10-15: 128 OI2026-10-16: 128 OI2026-10-21: 131 OI2026-10-23: 132 OI Oct 02, 2026Oct 23, 2026

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

MCK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing132+1
Oct 21, 2026131+3
Oct 16, 20261280
Oct 15, 20261280
Oct 14, 2026128+3
Oct 13, 2026125+4
Oct 09, 2026121+2
Oct 08, 20261190
Oct 07, 2026119+1
Oct 06, 20261180
Oct 05, 2026118-1
Oct 02, 2026119No prior observation