OITracker Cboe delayed data

Contract OI history

Back to HL

Mar 19, 2027 EXPIRATION

HL $21.00 Put

HL270319P00021000

Latest saved OI276Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HL $21.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2781390 2026-10-02: 274 OI2026-10-05: 275 OI2026-10-06: 277 OI2026-10-07: 277 OI2026-10-08: 277 OI2026-10-09: 277 OI2026-10-13: 278 OI2026-10-14: 278 OI2026-10-15: 277 OI2026-10-16: 277 OI2026-10-21: 277 OI2026-10-23: 276 OI Oct 02, 2026Oct 23, 2026

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

HL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing276-1
Oct 21, 20262770
Oct 16, 20262770
Oct 15, 2026277-1
Oct 14, 20262780
Oct 13, 2026278+1
Oct 09, 20262770
Oct 08, 20262770
Oct 07, 20262770
Oct 06, 2026277+2
Oct 05, 2026275+1
Oct 02, 2026274No prior observation