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Contract OI history

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Dec 18, 2026 EXPIRATION

PFSI $155.00 Call

PFSI261218C00155000

Latest saved OI203Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFSI $155.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2031010 2026-10-02: 203 OI2026-10-05: 203 OI2026-10-06: 203 OI2026-10-07: 203 OI2026-10-08: 203 OI2026-10-09: 203 OI2026-10-13: 203 OI2026-10-14: 203 OI2026-10-16: 203 OI2026-10-20: 203 OI2026-10-23: 203 OI Oct 02, 2026Oct 23, 2026

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

PFSI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20262030
Oct 20, 2026Viewing2030
Oct 16, 20262030
Oct 14, 20262030
Oct 13, 20262030
Oct 09, 20262030
Oct 08, 20262030
Oct 07, 20262030
Oct 06, 20262030
Oct 05, 20262030
Oct 02, 2026203No prior observation