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Contract OI history

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Sep 17, 2027 EXPIRATION

MSFT $800.00 Call

MSFT270917C00800000

Latest saved OI266Oct 23, 2026
Last change+45vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $800.00 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. 2661330 2026-10-09: 151 OI2026-10-13: 212 OI2026-10-14: 212 OI2026-10-15: 216 OI2026-10-16: 216 OI2026-10-21: 221 OI2026-10-23: 266 OI Oct 09, 2026Oct 23, 2026

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

MSFT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing266+45
Oct 21, 2026221+5
Oct 16, 20262160
Oct 15, 2026216+4
Oct 14, 20262120
Oct 13, 2026212+61
Oct 09, 2026151No prior observation