OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

S $25.00 Call

S280121C00025000

Latest saved OI539Oct 23, 2026
Last change+35vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $25.00 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. 5392690 2026-10-02: 508 OI2026-10-05: 505 OI2026-10-06: 504 OI2026-10-07: 500 OI2026-10-08: 500 OI2026-10-09: 500 OI2026-10-13: 500 OI2026-10-14: 500 OI2026-10-15: 500 OI2026-10-16: 503 OI2026-10-21: 504 OI2026-10-23: 539 OI Oct 02, 2026Oct 23, 2026

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

S contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing539+35
Oct 21, 2026504+1
Oct 16, 2026503+3
Oct 15, 20265000
Oct 14, 20265000
Oct 13, 20265000
Oct 09, 20265000
Oct 08, 20265000
Oct 07, 2026500-4
Oct 06, 2026504-1
Oct 05, 2026505-3
Oct 02, 2026508No prior observation