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Contract OI history

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Nov 20, 2026 EXPIRATION

MNTN $12.50 Put

MNTN261120P00012500

Latest saved OI21Oct 23, 2026
Last change+5vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MNTN $12.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 21100 2026-10-02: 16 OI2026-10-06: 16 OI2026-10-07: 16 OI2026-10-08: 16 OI2026-10-09: 16 OI2026-10-13: 16 OI2026-10-14: 16 OI2026-10-16: 16 OI2026-10-20: 16 OI2026-10-23: 21 OI Oct 02, 2026Oct 23, 2026

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

MNTN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202621+5
Oct 20, 2026Viewing160
Oct 16, 2026160
Oct 14, 2026160
Oct 13, 2026160
Oct 09, 2026160
Oct 08, 2026160
Oct 07, 2026160
Oct 06, 2026160
Oct 02, 202616No prior observation