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Contract OI history

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Jan 21, 2028 EXPIRATION

PSX $320.00 Call

PSX280121C00320000

Latest saved OI526Oct 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
PSX $320.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5262630 2026-10-02: 523 OI2026-10-05: 523 OI2026-10-06: 523 OI2026-10-07: 523 OI2026-10-08: 523 OI2026-10-09: 524 OI2026-10-13: 525 OI2026-10-14: 525 OI2026-10-15: 525 OI2026-10-16: 525 OI2026-10-21: 525 OI2026-10-23: 526 OI Oct 02, 2026Oct 23, 2026

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

PSX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing526+1
Oct 21, 20265250
Oct 16, 20265250
Oct 15, 20265250
Oct 14, 20265250
Oct 13, 2026525+1
Oct 09, 2026524+1
Oct 08, 20265230
Oct 07, 20265230
Oct 06, 20265230
Oct 05, 20265230
Oct 02, 2026523No prior observation