OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

S $27.00 Call

S280121C00027000

Latest saved OI384Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $27.00 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. 6653320 2026-10-02: 662 OI2026-10-05: 665 OI2026-10-06: 366 OI2026-10-07: 363 OI2026-10-08: 363 OI2026-10-09: 356 OI2026-10-13: 368 OI2026-10-14: 368 OI2026-10-15: 368 OI2026-10-16: 373 OI2026-10-21: 374 OI2026-10-23: 384 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, 2026Viewing384+10
Oct 21, 2026374+1
Oct 16, 2026373+5
Oct 15, 20263680
Oct 14, 20263680
Oct 13, 2026368+12
Oct 09, 2026356-7
Oct 08, 20263630
Oct 07, 2026363-3
Oct 06, 2026366-299
Oct 05, 2026665+3
Oct 02, 2026662No prior observation