OITracker Cboe delayed data

Contract OI history

Back to M

Mar 19, 2027 EXPIRATION

M $21.00 Call

M270319C00021000

Latest saved OI26Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $21.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 34170 2026-10-02: 10 OI2026-10-05: 10 OI2026-10-06: 20 OI2026-10-07: 34 OI2026-10-08: 34 OI2026-10-09: 25 OI2026-10-13: 25 OI2026-10-14: 25 OI2026-10-15: 26 OI2026-10-16: 26 OI2026-10-21: 26 OI2026-10-23: 26 OI Oct 02, 2026Oct 23, 2026

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

M contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing260
Oct 21, 2026260
Oct 16, 2026260
Oct 15, 202626+1
Oct 14, 2026250
Oct 13, 2026250
Oct 09, 202625-9
Oct 08, 2026340
Oct 07, 202634+14
Oct 06, 202620+10
Oct 05, 2026100
Oct 02, 202610No prior observation