OITracker Cboe delayed data

Contract OI history

Back to U

May 21, 2027 EXPIRATION

U $45.00 Put

U270521P00045000

Latest saved OI58Oct 23, 2026
Last change+34vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
U $45.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 58290 2026-10-02: 21 OI2026-10-05: 21 OI2026-10-06: 24 OI2026-10-07: 24 OI2026-10-08: 24 OI2026-10-09: 24 OI2026-10-14: 24 OI2026-10-15: 24 OI2026-10-16: 24 OI2026-10-21: 24 OI2026-10-23: 58 OI Oct 02, 2026Oct 23, 2026

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

U contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202658+34
Oct 21, 2026Viewing240
Oct 16, 2026240
Oct 15, 2026240
Oct 14, 2026240
Oct 09, 2026240
Oct 08, 2026240
Oct 07, 2026240
Oct 06, 202624+3
Oct 05, 2026210
Oct 02, 202621No prior observation