OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

DRTS $12.50 Call

DRTS270521C00012500

Latest saved OI213Oct 21, 2026
Last change+50vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
DRTS $12.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-21. Exact values and changes are listed in the table below. 2131060 2026-10-09: 162 OI2026-10-13: 162 OI2026-10-14: 162 OI2026-10-15: 162 OI2026-10-16: 163 OI2026-10-21: 213 OI Oct 09, 2026Oct 21, 2026

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

DRTS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing213+50
Oct 16, 2026163+1
Oct 15, 20261620
Oct 14, 20261620
Oct 13, 20261620
Oct 09, 2026162No prior observation