OITracker Cboe delayed data

Contract OI history

Back to BLNK

Nov 20, 2026 EXPIRATION

BLNK $500.00 Put

BLNK261120P00000500

Latest saved OI166Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BLNK $500.00 put open interest history 6 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 166830 2026-10-08: 62 OI2026-10-13: 62 OI2026-10-15: 63 OI2026-10-16: 144 OI2026-10-21: 166 OI2026-10-23: 166 OI Oct 08, 2026Oct 23, 2026

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

BLNK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1660
Oct 21, 2026166+22
Oct 16, 2026144+81
Oct 15, 202663+1
Oct 13, 2026620
Oct 08, 202662No prior observation