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Contract OI history

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May 21, 2027 EXPIRATION

WELL $250.00 Call

WELL270521C00250000

Latest saved OI435Oct 23, 2026
Last change+2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WELL $250.00 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. 4352170 2026-10-02: 430 OI2026-10-05: 430 OI2026-10-06: 430 OI2026-10-07: 430 OI2026-10-08: 435 OI2026-10-09: 435 OI2026-10-14: 435 OI2026-10-15: 433 OI2026-10-16: 431 OI2026-10-21: 433 OI2026-10-23: 435 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, 2026Viewing435+2
Oct 21, 2026433+2
Oct 16, 2026431-2
Oct 15, 2026433-2
Oct 14, 20264350
Oct 09, 20264350
Oct 08, 2026435+5
Oct 07, 20264300
Oct 06, 20264300
Oct 05, 20264300
Oct 02, 2026430No prior observation