OITracker Cboe delayed data

Contract OI history

Back to MS

Dec 15, 2028 EXPIRATION

MS $220.00 Put

MS281215P00220000

Latest saved OI295Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MS $220.00 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. 2951470 2026-10-02: 128 OI2026-10-05: 129 OI2026-10-06: 130 OI2026-10-07: 130 OI2026-10-08: 130 OI2026-10-09: 294 OI2026-10-13: 294 OI2026-10-14: 294 OI2026-10-15: 294 OI2026-10-16: 294 OI2026-10-21: 295 OI2026-10-23: 295 OI Oct 02, 2026Oct 23, 2026

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

MS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2950
Oct 21, 2026295+1
Oct 16, 20262940
Oct 15, 20262940
Oct 14, 20262940
Oct 13, 20262940
Oct 09, 2026294+164
Oct 08, 20261300
Oct 07, 20261300
Oct 06, 2026130+1
Oct 05, 2026129+1
Oct 02, 2026128No prior observation