OITracker Cboe delayed data

Contract OI history

Back to HDB

Apr 16, 2027 EXPIRATION

HDB $20.00 Put

HDB270416P00020000

Latest saved OI58Oct 21, 2026
Last change+30vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HDB $20.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 58290 2026-10-02: 26 OI2026-10-05: 26 OI2026-10-06: 27 OI2026-10-07: 27 OI2026-10-08: 27 OI2026-10-09: 27 OI2026-10-13: 28 OI2026-10-14: 28 OI2026-10-16: 28 OI2026-10-21: 58 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, 2026Viewing58+30
Oct 16, 2026280
Oct 14, 2026280
Oct 13, 202628+1
Oct 09, 2026270
Oct 08, 2026270
Oct 07, 2026270
Oct 06, 202627+1
Oct 05, 2026260
Oct 02, 202626No prior observation