OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

D $50.00 Put

D280121P00050000

Latest saved OI498Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
D $50.00 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. 5022510 2026-10-02: 462 OI2026-10-05: 462 OI2026-10-06: 462 OI2026-10-07: 462 OI2026-10-08: 462 OI2026-10-09: 502 OI2026-10-13: 502 OI2026-10-14: 502 OI2026-10-15: 463 OI2026-10-16: 463 OI2026-10-21: 498 OI2026-10-23: 498 OI Oct 02, 2026Oct 23, 2026

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

D contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4980
Oct 21, 2026498+35
Oct 16, 20264630
Oct 15, 2026463-39
Oct 14, 20265020
Oct 13, 20265020
Oct 09, 2026502+40
Oct 08, 20264620
Oct 07, 20264620
Oct 06, 20264620
Oct 05, 20264620
Oct 02, 2026462No prior observation