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Contract OI history

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May 21, 2027 EXPIRATION

WELL $280.00 Call

WELL270521C00280000

Latest saved OI658Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WELL $280.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6583290 2026-10-02: 607 OI2026-10-05: 607 OI2026-10-06: 607 OI2026-10-07: 609 OI2026-10-08: 611 OI2026-10-09: 612 OI2026-10-14: 615 OI2026-10-15: 617 OI2026-10-16: 626 OI2026-10-21: 658 OI2026-10-23: 658 OI Oct 02, 2026Oct 23, 2026

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

WELL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6580
Oct 21, 2026658+32
Oct 16, 2026626+9
Oct 15, 2026617+2
Oct 14, 2026615+3
Oct 09, 2026612+1
Oct 08, 2026611+2
Oct 07, 2026609+2
Oct 06, 20266070
Oct 05, 20266070
Oct 02, 2026607No prior observation