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Contract OI history

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Dec 18, 2026 EXPIRATION

MTSI $185.00 Put

MTSI261218P00185000

Latest saved OI69Oct 23, 2026
Last change+20vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MTSI $185.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 69340 2026-10-09: 1 OI2026-10-13: 1 OI2026-10-14: 1 OI2026-10-15: 1 OI2026-10-16: 49 OI2026-10-21: 49 OI2026-10-23: 69 OI Oct 09, 2026Oct 23, 2026

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

MTSI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing69+20
Oct 21, 2026490
Oct 16, 202649+48
Oct 15, 202610
Oct 14, 202610
Oct 13, 202610
Oct 09, 20261No prior observation