OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BLK $980.00 Put

BLK270115P00980000

Latest saved OI105Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLK $980.00 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. 105520 2026-10-02: 79 OI2026-10-05: 79 OI2026-10-06: 79 OI2026-10-07: 103 OI2026-10-08: 102 OI2026-10-09: 102 OI2026-10-13: 102 OI2026-10-14: 102 OI2026-10-15: 102 OI2026-10-16: 102 OI2026-10-21: 103 OI2026-10-23: 105 OI Oct 02, 2026Oct 23, 2026

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

BLK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing105+2
Oct 21, 2026103+1
Oct 16, 20261020
Oct 15, 20261020
Oct 14, 20261020
Oct 13, 20261020
Oct 09, 20261020
Oct 08, 2026102-1
Oct 07, 2026103+24
Oct 06, 2026790
Oct 05, 2026790
Oct 02, 202679No prior observation