OITracker Cboe delayed data

Contract OI history

Back to TOST

Jan 21, 2028 EXPIRATION

TOST $50.00 Call

TOST280121C00050000

Latest saved OI6,721Oct 23, 2026
Last change+9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $50.00 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. 6,8083,4040 2026-10-02: 6,808 OI2026-10-05: 6,807 OI2026-10-06: 6,806 OI2026-10-07: 6,806 OI2026-10-08: 6,806 OI2026-10-09: 6,806 OI2026-10-13: 6,807 OI2026-10-14: 6,807 OI2026-10-15: 6,713 OI2026-10-16: 6,723 OI2026-10-21: 6,712 OI2026-10-23: 6,721 OI Oct 02, 2026Oct 23, 2026

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

TOST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20266,721+9
Oct 21, 2026Viewing6,712-11
Oct 16, 20266,723+10
Oct 15, 20266,713-94
Oct 14, 20266,8070
Oct 13, 20266,807+1
Oct 09, 20266,8060
Oct 08, 20266,8060
Oct 07, 20266,8060
Oct 06, 20266,806-1
Oct 05, 20266,807-1
Oct 02, 20266,808No prior observation