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Contract OI history

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Jan 21, 2028 EXPIRATION

GFS $50.00 Put

GFS280121P00050000

Latest saved OI570Oct 23, 2026
Last change-10vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GFS $50.00 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. 5862930 2026-10-09: 586 OI2026-10-13: 586 OI2026-10-14: 586 OI2026-10-15: 585 OI2026-10-16: 585 OI2026-10-21: 580 OI2026-10-23: 570 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, 2026Viewing570-10
Oct 21, 2026580-5
Oct 16, 20265850
Oct 15, 2026585-1
Oct 14, 20265860
Oct 13, 20265860
Oct 09, 2026586No prior observation