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Contract OI history

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Jan 15, 2027 EXPIRATION

GRPN $18.00 Call

GRPN270115C00018000

Latest saved OI202Oct 23, 2026
Last change+50vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GRPN $18.00 call open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2021010 2026-10-08: 82 OI2026-10-09: 82 OI2026-10-13: 83 OI2026-10-14: 83 OI2026-10-15: 90 OI2026-10-16: 92 OI2026-10-20: 152 OI2026-10-23: 202 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, 2026202+50
Oct 20, 2026Viewing152+60
Oct 16, 202692+2
Oct 15, 202690+7
Oct 14, 2026830
Oct 13, 202683+1
Oct 09, 2026820
Oct 08, 202682No prior observation