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Contract OI history

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Dec 18, 2026 EXPIRATION

PFSI $70.00 Put

PFSI261218P00070000

Latest saved OI1,046Oct 23, 2026
Last change-3vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFSI $70.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0495240 2026-10-02: 979 OI2026-10-05: 979 OI2026-10-06: 979 OI2026-10-07: 979 OI2026-10-08: 979 OI2026-10-09: 979 OI2026-10-13: 979 OI2026-10-14: 979 OI2026-10-16: 1,049 OI2026-10-20: 1,049 OI2026-10-23: 1,046 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, 20261,046-3
Oct 20, 2026Viewing1,0490
Oct 16, 20261,049+70
Oct 14, 20269790
Oct 13, 20269790
Oct 09, 20269790
Oct 08, 20269790
Oct 07, 20269790
Oct 06, 20269790
Oct 05, 20269790
Oct 02, 2026979No prior observation