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Contract OI history

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Dec 18, 2026 EXPIRATION

SDGR $27.50 Call

SDGR261218C00027500

Latest saved OI1,585Oct 23, 2026
Last change-72vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SDGR $27.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,6578280 2026-10-09: 77 OI2026-10-13: 78 OI2026-10-14: 87 OI2026-10-16: 87 OI2026-10-20: 1,657 OI2026-10-23: 1,585 OI Oct 09, 2026Oct 23, 2026

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

SDGR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,585-72
Oct 20, 20261,657+1,570
Oct 16, 2026870
Oct 14, 202687+9
Oct 13, 202678+1
Oct 09, 202677No prior observation