OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

W $100.00 Put

W270319P00100000

Latest saved OI5,077Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
W $100.00 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. 5,0772,5380 2026-10-02: 5,026 OI2026-10-05: 5,026 OI2026-10-06: 5,028 OI2026-10-07: 5,059 OI2026-10-08: 5,060 OI2026-10-09: 5,060 OI2026-10-13: 5,063 OI2026-10-14: 5,063 OI2026-10-15: 5,063 OI2026-10-16: 5,063 OI2026-10-21: 5,076 OI2026-10-23: 5,077 OI Oct 02, 2026Oct 23, 2026

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

W contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20265,077+1
Oct 21, 2026Viewing5,076+13
Oct 16, 20265,0630
Oct 15, 20265,0630
Oct 14, 20265,0630
Oct 13, 20265,063+3
Oct 09, 20265,0600
Oct 08, 20265,060+1
Oct 07, 20265,059+31
Oct 06, 20265,028+2
Oct 05, 20265,0260
Oct 02, 20265,026No prior observation