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Contract OI history

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Nov 20, 2026 EXPIRATION

WS $40.00 Call

WS261120C00040000

Latest saved OI58Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WS $40.00 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. 58290 2026-10-02: 37 OI2026-10-05: 37 OI2026-10-06: 28 OI2026-10-07: 30 OI2026-10-08: 34 OI2026-10-09: 34 OI2026-10-13: 34 OI2026-10-14: 34 OI2026-10-16: 33 OI2026-10-20: 58 OI2026-10-23: 58 OI Oct 02, 2026Oct 23, 2026

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

WS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026580
Oct 20, 2026Viewing58+25
Oct 16, 202633-1
Oct 14, 2026340
Oct 13, 2026340
Oct 09, 2026340
Oct 08, 202634+4
Oct 07, 202630+2
Oct 06, 202628-9
Oct 05, 2026370
Oct 02, 202637No prior observation