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Contract OI history

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Dec 18, 2026 EXPIRATION

FSK $15.00 Put

FSK261218P00015000

Latest saved OI2,401Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 01, 2026 onwards
Daily open interest Hover a point for its date and OI
FSK $15.00 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. 2,4331,2160 2026-10-01: 2,433 OI2026-10-05: 2,432 OI2026-10-06: 2,432 OI2026-10-07: 2,432 OI2026-10-08: 2,432 OI2026-10-09: 2,432 OI2026-10-13: 2,432 OI2026-10-14: 2,432 OI2026-10-16: 2,432 OI2026-10-21: 2,401 OI2026-10-23: 2,401 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, 2026Viewing2,4010
Oct 21, 20262,401-31
Oct 16, 20262,4320
Oct 14, 20262,4320
Oct 13, 20262,4320
Oct 09, 20262,4320
Oct 08, 20262,4320
Oct 07, 20262,4320
Oct 06, 20262,4320
Oct 05, 20262,432-1
Oct 01, 20262,433No prior observation