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Contract OI history

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Mar 19, 2027 EXPIRATION

GEOS $2.50 Put

GEOS270319P00002500

Latest saved OI1,661Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GEOS $2.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1,6618300 2026-10-08: 1,661 OI2026-10-09: 1,661 OI2026-10-13: 1,661 OI2026-10-14: 1,661 OI2026-10-16: 1,661 OI2026-10-20: 1,661 OI2026-10-23: 1,661 OI Oct 08, 2026Oct 23, 2026

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

GEOS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,6610
Oct 20, 20261,6610
Oct 16, 20261,6610
Oct 14, 20261,6610
Oct 13, 20261,6610
Oct 09, 20261,6610
Oct 08, 20261,661No prior observation