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Contract OI history

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Jan 21, 2028 EXPIRATION

GFS $55.00 Put

GFS280121P00055000

Latest saved OI8,943Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GFS $55.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 8,9534,4760 2026-10-09: 8,953 OI2026-10-13: 8,951 OI2026-10-14: 8,951 OI2026-10-15: 8,943 OI2026-10-16: 8,943 OI2026-10-21: 8,943 OI2026-10-23: 8,943 OI Oct 09, 2026Oct 23, 2026

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

GFS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20268,9430
Oct 21, 2026Viewing8,9430
Oct 16, 20268,9430
Oct 15, 20268,943-8
Oct 14, 20268,9510
Oct 13, 20268,951-2
Oct 09, 20268,953No prior observation