OITracker Cboe delayed data

Contract OI history

Back to TOST

Nov 20, 2026 EXPIRATION

TOST $30.00 Call

TOST261120C00030000

Latest saved OI448Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $30.00 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. 4532260 2026-10-02: 418 OI2026-10-05: 432 OI2026-10-06: 418 OI2026-10-07: 428 OI2026-10-08: 428 OI2026-10-09: 432 OI2026-10-13: 442 OI2026-10-14: 442 OI2026-10-15: 453 OI2026-10-16: 447 OI2026-10-21: 448 OI2026-10-23: 448 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, 20264480
Oct 21, 2026Viewing448+1
Oct 16, 2026447-6
Oct 15, 2026453+11
Oct 14, 20264420
Oct 13, 2026442+10
Oct 09, 2026432+4
Oct 08, 20264280
Oct 07, 2026428+10
Oct 06, 2026418-14
Oct 05, 2026432+14
Oct 02, 2026418No prior observation