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Contract OI history

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Jan 21, 2028 EXPIRATION

FSK $7.50 Put

FSK280121P00007500

Latest saved OI2,035Oct 23, 2026
Last change+1,932vs previous saved observation
Saved market days11Oct 01, 2026 onwards
Daily open interest Hover a point for its date and OI
FSK $7.50 put open interest history 11 saved observations from 2026-10-01 to 2026-10-23. Exact values and changes are listed in the table below. 2,0351,0170 2026-10-01: 14 OI2026-10-05: 24 OI2026-10-06: 24 OI2026-10-07: 24 OI2026-10-08: 24 OI2026-10-09: 24 OI2026-10-13: 24 OI2026-10-14: 24 OI2026-10-16: 24 OI2026-10-21: 103 OI2026-10-23: 2,035 OI Oct 01, 2026Oct 23, 2026

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

FSK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,035+1,932
Oct 21, 2026103+79
Oct 16, 2026240
Oct 14, 2026240
Oct 13, 2026240
Oct 09, 2026240
Oct 08, 2026240
Oct 07, 2026240
Oct 06, 2026240
Oct 05, 202624+10
Oct 01, 202614No prior observation