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Contract OI history

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Nov 20, 2026 EXPIRATION

GSM $4.00 Put

GSM261120P00004000

Latest saved OI482Oct 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. 4822410 2026-10-09: 0 OI2026-10-13: 0 OI2026-10-14: 245 OI2026-10-16: 480 OI2026-10-20: 482 OI2026-10-23: 482 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, 2026Viewing4820
Oct 20, 2026482+2
Oct 16, 2026480+235
Oct 14, 2026245+245
Oct 13, 202600
Oct 09, 20260No prior observation