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Contract OI history

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Jan 15, 2027 EXPIRATION

GCT $40.00 Put

GCT270115P00040000

Latest saved OI171Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GCT $40.00 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. 171850 2026-10-09: 82 OI2026-10-13: 82 OI2026-10-14: 83 OI2026-10-16: 169 OI2026-10-20: 171 OI2026-10-23: 171 OI Oct 09, 2026Oct 23, 2026

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

GCT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1710
Oct 20, 2026171+2
Oct 16, 2026169+86
Oct 14, 202683+1
Oct 13, 2026820
Oct 09, 202682No prior observation