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Contract OI history

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Mar 19, 2027 EXPIRATION

SIGA $5.00 Call

SIGA270319C00005000

Latest saved OI655Oct 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. 6553270 2026-10-08: 234 OI2026-10-09: 303 OI2026-10-13: 303 OI2026-10-14: 303 OI2026-10-16: 650 OI2026-10-20: 655 OI2026-10-23: 655 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, 20266550
Oct 20, 2026Viewing655+5
Oct 16, 2026650+347
Oct 14, 20263030
Oct 13, 20263030
Oct 09, 2026303+69
Oct 08, 2026234No prior observation