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Contract OI history

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Nov 20, 2026 EXPIRATION

WTRG $40.00 Put

WTRG261120P00040000

Latest saved OI1,038Oct 23, 2026
Last change+1,000vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WTRG $40.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0385190 2026-10-02: 8 OI2026-10-05: 8 OI2026-10-06: 8 OI2026-10-07: 8 OI2026-10-08: 8 OI2026-10-09: 8 OI2026-10-14: 11 OI2026-10-15: 11 OI2026-10-16: 5 OI2026-10-21: 38 OI2026-10-23: 1,038 OI Oct 02, 2026Oct 23, 2026

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

WTRG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,038+1,000
Oct 21, 202638+33
Oct 16, 20265-6
Oct 15, 2026110
Oct 14, 202611+3
Oct 09, 202680
Oct 08, 202680
Oct 07, 202680
Oct 06, 202680
Oct 05, 202680
Oct 02, 20268No prior observation