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Contract OI history

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Mar 19, 2027 EXPIRATION

CLS $300.00 Put

CLS270319P00300000

Latest saved OI139Oct 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
CLS $300.00 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. 139690 2026-10-02: 129 OI2026-10-05: 129 OI2026-10-06: 130 OI2026-10-07: 130 OI2026-10-08: 130 OI2026-10-09: 130 OI2026-10-13: 131 OI2026-10-14: 131 OI2026-10-15: 134 OI2026-10-16: 138 OI2026-10-21: 138 OI2026-10-23: 139 OI Oct 02, 2026Oct 23, 2026

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

CLS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing139+1
Oct 21, 20261380
Oct 16, 2026138+4
Oct 15, 2026134+3
Oct 14, 20261310
Oct 13, 2026131+1
Oct 09, 20261300
Oct 08, 20261300
Oct 07, 20261300
Oct 06, 2026130+1
Oct 05, 20261290
Oct 02, 2026129No prior observation