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Contract OI history

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Oct 30, 2026 EXPIRATION

ET $20.50 Call

ET261030C00020500

Latest saved OI411Oct 08, 2026
Last change+15vs previous saved observation
Saved market days5Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ET $20.50 call open interest history 5 saved observations from 2026-10-02 to 2026-10-08. Exact values and changes are listed in the table below. 4112050 2026-10-02: 331 OI2026-10-05: 337 OI2026-10-06: 392 OI2026-10-07: 396 OI2026-10-08: 411 OI Oct 02, 2026Oct 08, 2026

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

ET contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 08, 2026Viewing411+15
Oct 07, 2026396+4
Oct 06, 2026392+55
Oct 05, 2026337+6
Oct 02, 2026331No prior observation