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Contract OI history

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Mar 19, 2027 EXPIRATION

MPT $3.50 Put

MPT270319P00003500

Latest saved OI1,470Oct 23, 2026
Last change+59vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MPT $3.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,4707350 2026-10-02: 434 OI2026-10-05: 471 OI2026-10-06: 471 OI2026-10-07: 471 OI2026-10-08: 840 OI2026-10-09: 1,140 OI2026-10-13: 1,140 OI2026-10-14: 1,140 OI2026-10-16: 1,341 OI2026-10-21: 1,411 OI2026-10-23: 1,470 OI Oct 02, 2026Oct 23, 2026

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

MPT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,470+59
Oct 21, 20261,411+70
Oct 16, 20261,341+201
Oct 14, 20261,1400
Oct 13, 20261,1400
Oct 09, 20261,140+300
Oct 08, 2026840+369
Oct 07, 20264710
Oct 06, 20264710
Oct 05, 2026471+37
Oct 02, 2026434No prior observation