OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

MRNA $220.00 Put

MRNA261120P00220000

Latest saved OI334Oct 23, 2026
Last change-249vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MRNA $220.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 5832910 2026-10-09: 310 OI2026-10-13: 239 OI2026-10-14: 239 OI2026-10-15: 321 OI2026-10-16: 395 OI2026-10-21: 583 OI2026-10-23: 334 OI Oct 09, 2026Oct 23, 2026

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

MRNA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026334-249
Oct 21, 2026Viewing583+188
Oct 16, 2026395+74
Oct 15, 2026321+82
Oct 14, 20262390
Oct 13, 2026239-71
Oct 09, 2026310No prior observation