OITracker Cboe delayed data

Contract OI history

Back to T

Jan 15, 2027 EXPIRATION

T $21.00 Put

T270115P00021000

Latest saved OI15,076Oct 23, 2026
Last change+3,240vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
T $21.00 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. 15,0767,5380 2026-10-02: 11,752 OI2026-10-05: 11,827 OI2026-10-06: 11,816 OI2026-10-07: 11,816 OI2026-10-08: 11,821 OI2026-10-09: 11,759 OI2026-10-14: 11,785 OI2026-10-15: 11,786 OI2026-10-16: 11,784 OI2026-10-21: 11,836 OI2026-10-23: 15,076 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, 2026Viewing15,076+3,240
Oct 21, 202611,836+52
Oct 16, 202611,784-2
Oct 15, 202611,786+1
Oct 14, 202611,785+26
Oct 09, 202611,759-62
Oct 08, 202611,821+5
Oct 07, 202611,8160
Oct 06, 202611,816-11
Oct 05, 202611,827+75
Oct 02, 202611,752No prior observation