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Contract OI history

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Dec 18, 2026 EXPIRATION

GSM $4.00 Put

GSM261218P00004000

Latest saved OI6,175Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GSM $4.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6,1753,0870 2026-10-09: 6,165 OI2026-10-13: 6,165 OI2026-10-14: 6,165 OI2026-10-16: 6,175 OI2026-10-20: 6,175 OI2026-10-23: 6,175 OI Oct 09, 2026Oct 23, 2026

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

GSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6,1750
Oct 20, 20266,1750
Oct 16, 20266,175+10
Oct 14, 20266,1650
Oct 13, 20266,1650
Oct 09, 20266,165No prior observation