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Contract OI history

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Jan 15, 2027 EXPIRATION

RBRK $87.50 Put

RBRK270115P00087500

Latest saved OI355Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RBRK $87.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3551770 2026-10-02: 353 OI2026-10-05: 352 OI2026-10-06: 352 OI2026-10-07: 352 OI2026-10-08: 352 OI2026-10-09: 352 OI2026-10-13: 352 OI2026-10-14: 352 OI2026-10-15: 355 OI2026-10-16: 355 OI2026-10-21: 355 OI2026-10-23: 355 OI Oct 02, 2026Oct 23, 2026

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

RBRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20263550
Oct 21, 2026Viewing3550
Oct 16, 20263550
Oct 15, 2026355+3
Oct 14, 20263520
Oct 13, 20263520
Oct 09, 20263520
Oct 08, 20263520
Oct 07, 20263520
Oct 06, 20263520
Oct 05, 2026352-1
Oct 02, 2026353No prior observation