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Contract OI history

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Nov 20, 2026 EXPIRATION

TDC $27.50 Call

TDC261120C00027500

Latest saved OI54Oct 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
TDC $27.50 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. 94470 2026-10-02: 75 OI2026-10-05: 85 OI2026-10-06: 85 OI2026-10-07: 85 OI2026-10-08: 85 OI2026-10-09: 85 OI2026-10-13: 94 OI2026-10-15: 89 OI2026-10-16: 89 OI2026-10-21: 55 OI2026-10-23: 54 OI Oct 02, 2026Oct 23, 2026

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

TDC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing54-1
Oct 21, 202655-34
Oct 16, 2026890
Oct 15, 202689-5
Oct 13, 202694+9
Oct 09, 2026850
Oct 08, 2026850
Oct 07, 2026850
Oct 06, 2026850
Oct 05, 202685+10
Oct 02, 202675No prior observation