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Contract OI history

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Dec 18, 2026 EXPIRATION

MKSI $230.00 Call

MKSI261218C00230000

Latest saved OI353Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MKSI $230.00 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. 3541770 2026-10-09: 2 OI2026-10-13: 2 OI2026-10-14: 2 OI2026-10-15: 2 OI2026-10-16: 351 OI2026-10-21: 354 OI2026-10-23: 353 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, 2026353-1
Oct 21, 2026Viewing354+3
Oct 16, 2026351+349
Oct 15, 202620
Oct 14, 202620
Oct 13, 202620
Oct 09, 20262No prior observation