OITracker Cboe delayed data

Contract OI history

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Sep 17, 2027 EXPIRATION

CE $55.00 Call

CE270917C00055000

Latest saved OI194Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CE $55.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 194970 2026-10-02: 193 OI2026-10-05: 193 OI2026-10-06: 193 OI2026-10-07: 193 OI2026-10-08: 193 OI2026-10-09: 192 OI2026-10-13: 192 OI2026-10-14: 192 OI2026-10-16: 192 OI2026-10-20: 194 OI2026-10-23: 194 OI Oct 02, 2026Oct 23, 2026

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

CE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1940
Oct 20, 2026194+2
Oct 16, 20261920
Oct 14, 20261920
Oct 13, 20261920
Oct 09, 2026192-1
Oct 08, 20261930
Oct 07, 20261930
Oct 06, 20261930
Oct 05, 20261930
Oct 02, 2026193No prior observation