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Contract OI history

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Apr 21, 2028 EXPIRATION

T $18.00 Call

T280421C00018000

Latest saved OI196Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
T $18.00 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. 197980 2026-10-02: 195 OI2026-10-05: 195 OI2026-10-06: 195 OI2026-10-07: 195 OI2026-10-08: 195 OI2026-10-09: 197 OI2026-10-14: 197 OI2026-10-15: 197 OI2026-10-16: 197 OI2026-10-21: 196 OI2026-10-23: 196 OI Oct 02, 2026Oct 23, 2026

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

T contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1960
Oct 21, 2026196-1
Oct 16, 20261970
Oct 15, 20261970
Oct 14, 20261970
Oct 09, 2026197+2
Oct 08, 20261950
Oct 07, 20261950
Oct 06, 20261950
Oct 05, 20261950
Oct 02, 2026195No prior observation