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Contract OI history

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Dec 18, 2026 EXPIRATION

SCHW $55.00 Put

SCHW261218P00055000

Latest saved OI697Oct 23, 2026
Last change-40vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SCHW $55.00 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. 7383690 2026-10-02: 738 OI2026-10-05: 738 OI2026-10-06: 738 OI2026-10-07: 738 OI2026-10-08: 738 OI2026-10-09: 738 OI2026-10-13: 738 OI2026-10-14: 738 OI2026-10-15: 738 OI2026-10-16: 737 OI2026-10-21: 737 OI2026-10-23: 697 OI Oct 02, 2026Oct 23, 2026

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

SCHW contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing697-40
Oct 21, 20267370
Oct 16, 2026737-1
Oct 15, 20267380
Oct 14, 20267380
Oct 13, 20267380
Oct 09, 20267380
Oct 08, 20267380
Oct 07, 20267380
Oct 06, 20267380
Oct 05, 20267380
Oct 02, 2026738No prior observation