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Contract OI history

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May 21, 2027 EXPIRATION

NET $220.00 Put

NET270521P00220000

Latest saved OI77Oct 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
NET $220.00 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. 77380 2026-10-02: 1 OI2026-10-05: 1 OI2026-10-06: 1 OI2026-10-07: 15 OI2026-10-08: 15 OI2026-10-09: 64 OI2026-10-13: 64 OI2026-10-14: 64 OI2026-10-15: 64 OI2026-10-16: 64 OI2026-10-21: 76 OI2026-10-23: 77 OI Oct 02, 2026Oct 23, 2026

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

NET contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202677+1
Oct 21, 2026Viewing76+12
Oct 16, 2026640
Oct 15, 2026640
Oct 14, 2026640
Oct 13, 2026640
Oct 09, 202664+49
Oct 08, 2026150
Oct 07, 202615+14
Oct 06, 202610
Oct 05, 202610
Oct 02, 20261No prior observation