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Contract OI history

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Dec 18, 2026 EXPIRATION

MNTN $12.50 Put

MNTN261218P00012500

Latest saved OI20Oct 23, 2026
Last change0vs 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. 20100 2026-10-02: 19 OI2026-10-06: 19 OI2026-10-07: 20 OI2026-10-08: 20 OI2026-10-09: 20 OI2026-10-13: 20 OI2026-10-14: 20 OI2026-10-16: 20 OI2026-10-20: 20 OI2026-10-23: 20 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, 2026200
Oct 20, 2026Viewing200
Oct 16, 2026200
Oct 14, 2026200
Oct 13, 2026200
Oct 09, 2026200
Oct 08, 2026200
Oct 07, 202620+1
Oct 06, 2026190
Oct 02, 202619No prior observation