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Contract OI history

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May 21, 2027 EXPIRATION

WELL $240.00 Call

WELL270521C00240000

Latest saved OI467Oct 23, 2026
Last change+1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WELL $240.00 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. 4672330 2026-10-02: 409 OI2026-10-05: 409 OI2026-10-06: 409 OI2026-10-07: 410 OI2026-10-08: 455 OI2026-10-09: 455 OI2026-10-14: 463 OI2026-10-15: 463 OI2026-10-16: 465 OI2026-10-21: 466 OI2026-10-23: 467 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, 2026Viewing467+1
Oct 21, 2026466+1
Oct 16, 2026465+2
Oct 15, 20264630
Oct 14, 2026463+8
Oct 09, 20264550
Oct 08, 2026455+45
Oct 07, 2026410+1
Oct 06, 20264090
Oct 05, 20264090
Oct 02, 2026409No prior observation