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Contract OI history

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Jan 15, 2027 EXPIRATION

GRPN $21.00 Put

GRPN270115P00021000

Latest saved OI1,280Oct 23, 2026
Last change+30vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GRPN $21.00 put open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1,2806400 2026-10-08: 1,251 OI2026-10-09: 1,251 OI2026-10-13: 1,251 OI2026-10-14: 1,251 OI2026-10-15: 1,251 OI2026-10-16: 1,250 OI2026-10-20: 1,250 OI2026-10-23: 1,280 OI Oct 08, 2026Oct 23, 2026

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

GRPN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,280+30
Oct 20, 2026Viewing1,2500
Oct 16, 20261,250-1
Oct 15, 20261,2510
Oct 14, 20261,2510
Oct 13, 20261,2510
Oct 09, 20261,2510
Oct 08, 20261,251No prior observation