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Contract OI history

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Nov 20, 2026 EXPIRATION

SIGA $5.00 Call

SIGA261120C00005000

Latest saved OI511Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
SIGA $5.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 5112550 2026-10-08: 511 OI2026-10-09: 511 OI2026-10-13: 511 OI2026-10-14: 511 OI2026-10-16: 511 OI2026-10-20: 511 OI2026-10-23: 511 OI Oct 08, 2026Oct 23, 2026

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

SIGA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20265110
Oct 20, 2026Viewing5110
Oct 16, 20265110
Oct 14, 20265110
Oct 13, 20265110
Oct 09, 20265110
Oct 08, 2026511No prior observation