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Contract OI history

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Nov 20, 2026 EXPIRATION

GRBK $60.00 Put

GRBK261120P00060000

Latest saved OI96Oct 21, 2026
Last change+4vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GRBK $60.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 96480 2026-10-02: 72 OI2026-10-05: 72 OI2026-10-06: 72 OI2026-10-07: 72 OI2026-10-08: 84 OI2026-10-09: 89 OI2026-10-13: 89 OI2026-10-14: 89 OI2026-10-16: 92 OI2026-10-21: 96 OI Oct 02, 2026Oct 21, 2026

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

GRBK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing96+4
Oct 16, 202692+3
Oct 14, 2026890
Oct 13, 2026890
Oct 09, 202689+5
Oct 08, 202684+12
Oct 07, 2026720
Oct 06, 2026720
Oct 05, 2026720
Oct 02, 202672No prior observation