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Contract OI history

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Jan 21, 2028 EXPIRATION

RILY $2.50 Put

RILY280121P00002500

Latest saved OI10,866Oct 23, 2026
Last change+20vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
RILY $2.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 10,8665,4330 2026-10-08: 9,791 OI2026-10-09: 10,303 OI2026-10-13: 10,766 OI2026-10-14: 10,776 OI2026-10-16: 10,836 OI2026-10-20: 10,846 OI2026-10-23: 10,866 OI Oct 08, 2026Oct 23, 2026

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

RILY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing10,866+20
Oct 20, 202610,846+10
Oct 16, 202610,836+60
Oct 14, 202610,776+10
Oct 13, 202610,766+463
Oct 09, 202610,303+512
Oct 08, 20269,791No prior observation