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Contract OI history

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Dec 18, 2026 EXPIRATION

PSX $270.00 Call

PSX261218C00270000

Latest saved OI445Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $270.00 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. 4462230 2026-10-02: 312 OI2026-10-05: 321 OI2026-10-06: 372 OI2026-10-07: 416 OI2026-10-08: 441 OI2026-10-09: 441 OI2026-10-13: 446 OI2026-10-14: 446 OI2026-10-15: 446 OI2026-10-16: 444 OI2026-10-21: 443 OI2026-10-23: 445 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, 2026Viewing445+2
Oct 21, 2026443-1
Oct 16, 2026444-2
Oct 15, 20264460
Oct 14, 20264460
Oct 13, 2026446+5
Oct 09, 20264410
Oct 08, 2026441+25
Oct 07, 2026416+44
Oct 06, 2026372+51
Oct 05, 2026321+9
Oct 02, 2026312No prior observation