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Contract OI history

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Dec 18, 2026 EXPIRATION

FSK $12.50 Call

FSK261218C00012500

Latest saved OI2,494Oct 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 $12.50 call open interest history 11 saved observations from 2026-10-01 to 2026-10-23. Exact values and changes are listed in the table below. 2,5101,2550 2026-10-01: 2,457 OI2026-10-05: 2,470 OI2026-10-06: 2,470 OI2026-10-07: 2,470 OI2026-10-08: 2,470 OI2026-10-09: 2,468 OI2026-10-13: 2,468 OI2026-10-14: 2,510 OI2026-10-16: 2,508 OI2026-10-21: 2,494 OI2026-10-23: 2,494 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, 2026Viewing2,4940
Oct 21, 20262,494-14
Oct 16, 20262,508-2
Oct 14, 20262,510+42
Oct 13, 20262,4680
Oct 09, 20262,468-2
Oct 08, 20262,4700
Oct 07, 20262,4700
Oct 06, 20262,4700
Oct 05, 20262,470+13
Oct 01, 20262,457No prior observation