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Contract OI history

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Nov 20, 2026 EXPIRATION

ARCO $7.50 Put

ARCO261120P00007500

Latest saved OI3,168Oct 20, 2026
Last change+3,000vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ARCO $7.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 3,1681,5840 2026-10-02: 138 OI2026-10-05: 138 OI2026-10-06: 143 OI2026-10-07: 143 OI2026-10-08: 158 OI2026-10-09: 158 OI2026-10-13: 168 OI2026-10-14: 168 OI2026-10-15: 168 OI2026-10-16: 168 OI2026-10-20: 3,168 OI Oct 02, 2026Oct 20, 2026

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

ARCO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing3,168+3,000
Oct 16, 20261680
Oct 15, 20261680
Oct 14, 20261680
Oct 13, 2026168+10
Oct 09, 20261580
Oct 08, 2026158+15
Oct 07, 20261430
Oct 06, 2026143+5
Oct 05, 20261380
Oct 02, 2026138No prior observation