OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

DRTS $17.50 Call

DRTS280121C00017500

Latest saved OI1,014Oct 21, 2026
Last change+2vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
DRTS $17.50 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. 1,0145070 2026-10-09: 1,012 OI2026-10-13: 1,012 OI2026-10-14: 1,012 OI2026-10-15: 1,012 OI2026-10-16: 1,012 OI2026-10-21: 1,014 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, 2026Viewing1,014+2
Oct 16, 20261,0120
Oct 15, 20261,0120
Oct 14, 20261,0120
Oct 13, 20261,0120
Oct 09, 20261,012No prior observation