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Contract OI history

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Jan 21, 2028 EXPIRATION

RIG $5.50 Put

RIG280121P00005500

Latest saved OI653Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RIG $5.50 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. 6533260 2026-10-02: 645 OI2026-10-05: 645 OI2026-10-06: 648 OI2026-10-07: 648 OI2026-10-08: 648 OI2026-10-09: 648 OI2026-10-13: 648 OI2026-10-14: 648 OI2026-10-15: 647 OI2026-10-16: 647 OI2026-10-21: 650 OI2026-10-23: 653 OI Oct 02, 2026Oct 23, 2026

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

RIG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing653+3
Oct 21, 2026650+3
Oct 16, 20266470
Oct 15, 2026647-1
Oct 14, 20266480
Oct 13, 20266480
Oct 09, 20266480
Oct 08, 20266480
Oct 07, 20266480
Oct 06, 2026648+3
Oct 05, 20266450
Oct 02, 2026645No prior observation