OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

BOX $20.00 Put

BOX280121P00020000

Latest saved OI211Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BOX $20.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2111050 2026-10-02: 130 OI2026-10-05: 130 OI2026-10-06: 130 OI2026-10-07: 130 OI2026-10-08: 140 OI2026-10-13: 204 OI2026-10-14: 204 OI2026-10-15: 204 OI2026-10-16: 204 OI2026-10-20: 211 OI2026-10-23: 211 OI Oct 02, 2026Oct 23, 2026

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

BOX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2110
Oct 20, 2026211+7
Oct 16, 20262040
Oct 15, 20262040
Oct 14, 20262040
Oct 13, 2026204+64
Oct 08, 2026140+10
Oct 07, 20261300
Oct 06, 20261300
Oct 05, 20261300
Oct 02, 2026130No prior observation