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Contract OI history

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Dec 18, 2026 EXPIRATION

GRPN $19.00 Put

GRPN261218P00019000

Latest saved OI237Oct 23, 2026
Last change0vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GRPN $19.00 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. 2671330 2026-10-08: 256 OI2026-10-09: 260 OI2026-10-13: 260 OI2026-10-14: 260 OI2026-10-15: 260 OI2026-10-16: 267 OI2026-10-20: 237 OI2026-10-23: 237 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, 20262370
Oct 20, 2026Viewing237-30
Oct 16, 2026267+7
Oct 15, 20262600
Oct 14, 20262600
Oct 13, 20262600
Oct 09, 2026260+4
Oct 08, 2026256No prior observation