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Contract OI history

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Feb 19, 2027 EXPIRATION

MKSI $350.00 Call

MKSI270219C00350000

Latest saved OI181Oct 23, 2026
Last change-38vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MKSI $350.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2291140 2026-10-09: 226 OI2026-10-13: 226 OI2026-10-14: 229 OI2026-10-15: 229 OI2026-10-16: 229 OI2026-10-21: 219 OI2026-10-23: 181 OI Oct 09, 2026Oct 23, 2026

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

MKSI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing181-38
Oct 21, 2026219-10
Oct 16, 20262290
Oct 15, 20262290
Oct 14, 2026229+3
Oct 13, 20262260
Oct 09, 2026226No prior observation