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Jan 21, 2028 EXPIRATION

GD $340.00 Put

GD280121P00340000

Latest saved OI223Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GD $340.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2231110 2026-10-02: 213 OI2026-10-05: 213 OI2026-10-06: 213 OI2026-10-07: 213 OI2026-10-08: 213 OI2026-10-09: 213 OI2026-10-13: 213 OI2026-10-14: 213 OI2026-10-15: 213 OI2026-10-16: 213 OI2026-10-21: 213 OI2026-10-23: 223 OI Oct 02, 2026Oct 23, 2026

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

GD contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026223+10
Oct 21, 2026Viewing2130
Oct 16, 20262130
Oct 15, 20262130
Oct 14, 20262130
Oct 13, 20262130
Oct 09, 20262130
Oct 08, 20262130
Oct 07, 20262130
Oct 06, 20262130
Oct 05, 20262130
Oct 02, 2026213No prior observation