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Contract OI history

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Apr 16, 2027 EXPIRATION

HDB $17.50 Call

HDB270416C00017500

Latest saved OI6Oct 21, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HDB $17.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 940 2026-10-02: 1 OI2026-10-05: 5 OI2026-10-06: 6 OI2026-10-07: 6 OI2026-10-08: 8 OI2026-10-09: 9 OI2026-10-13: 9 OI2026-10-14: 9 OI2026-10-16: 6 OI2026-10-21: 6 OI Oct 02, 2026Oct 21, 2026

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

HDB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing60
Oct 16, 20266-3
Oct 14, 202690
Oct 13, 202690
Oct 09, 20269+1
Oct 08, 20268+2
Oct 07, 202660
Oct 06, 20266+1
Oct 05, 20265+4
Oct 02, 20261No prior observation