OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

S $18.00 Put

S270115P00018000

Latest saved OI1,052Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $18.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,1555770 2026-10-02: 1,155 OI2026-10-05: 1,126 OI2026-10-06: 1,126 OI2026-10-07: 1,126 OI2026-10-08: 1,126 OI2026-10-09: 1,063 OI2026-10-13: 1,054 OI2026-10-14: 1,054 OI2026-10-15: 1,054 OI2026-10-16: 1,054 OI2026-10-21: 1,052 OI2026-10-23: 1,052 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, 2026Viewing1,0520
Oct 21, 20261,052-2
Oct 16, 20261,0540
Oct 15, 20261,0540
Oct 14, 20261,0540
Oct 13, 20261,054-9
Oct 09, 20261,063-63
Oct 08, 20261,1260
Oct 07, 20261,1260
Oct 06, 20261,1260
Oct 05, 20261,126-29
Oct 02, 20261,155No prior observation