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Contract OI history

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Nov 20, 2026 EXPIRATION

ISPR $2.50 Call

ISPR261120C00002500

Latest saved OI3Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISPR $2.50 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. 310 2026-10-09: 1 OI2026-10-13: 1 OI2026-10-14: 1 OI2026-10-16: 1 OI2026-10-20: 3 OI2026-10-23: 3 OI Oct 09, 2026Oct 23, 2026

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

ISPR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing30
Oct 20, 20263+2
Oct 16, 202610
Oct 14, 202610
Oct 13, 202610
Oct 09, 20261No prior observation