OITracker Cboe delayed data

Contract OI history

Back to GRPN

Nov 20, 2026 EXPIRATION

GRPN $21.00 Call

GRPN261120C00021000

Latest saved OI144Oct 23, 2026
Last change-1vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GRPN $21.00 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. 160800 2026-10-08: 149 OI2026-10-09: 149 OI2026-10-13: 160 OI2026-10-14: 160 OI2026-10-15: 148 OI2026-10-16: 153 OI2026-10-20: 145 OI2026-10-23: 144 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, 2026144-1
Oct 20, 2026Viewing145-8
Oct 16, 2026153+5
Oct 15, 2026148-12
Oct 14, 20261600
Oct 13, 2026160+11
Oct 09, 20261490
Oct 08, 2026149No prior observation