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Contract OI history

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Jun 17, 2027 EXPIRATION

CAT $720.00 Put

CAT270617P00720000

Latest saved OI579Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $720.00 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. 5792890 2026-10-02: 539 OI2026-10-05: 538 OI2026-10-06: 546 OI2026-10-07: 552 OI2026-10-08: 552 OI2026-10-09: 551 OI2026-10-13: 554 OI2026-10-14: 554 OI2026-10-15: 554 OI2026-10-16: 568 OI2026-10-21: 578 OI2026-10-23: 579 OI Oct 02, 2026Oct 23, 2026

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

CAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing579+1
Oct 21, 2026578+10
Oct 16, 2026568+14
Oct 15, 20265540
Oct 14, 20265540
Oct 13, 2026554+3
Oct 09, 2026551-1
Oct 08, 20265520
Oct 07, 2026552+6
Oct 06, 2026546+8
Oct 05, 2026538-1
Oct 02, 2026539No prior observation