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Contract OI history

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Jan 21, 2028 EXPIRATION

RUM $4.00 Put

RUM280121P00004000

Latest saved OI4,605Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
RUM $4.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4,6082,3040 2026-10-09: 143 OI2026-10-13: 143 OI2026-10-14: 143 OI2026-10-15: 143 OI2026-10-16: 2,824 OI2026-10-21: 4,608 OI2026-10-23: 4,605 OI Oct 09, 2026Oct 23, 2026

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

RUM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4,605-3
Oct 21, 20264,608+1,784
Oct 16, 20262,824+2,681
Oct 15, 20261430
Oct 14, 20261430
Oct 13, 20261430
Oct 09, 2026143No prior observation