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Contract OI history

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Dec 18, 2026 EXPIRATION

PSX $300.00 Call

PSX261218C00300000

Latest saved OI443Oct 23, 2026
Last change+8vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $300.00 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. 4432210 2026-10-02: 229 OI2026-10-05: 229 OI2026-10-06: 235 OI2026-10-07: 235 OI2026-10-08: 255 OI2026-10-09: 281 OI2026-10-13: 312 OI2026-10-14: 312 OI2026-10-15: 357 OI2026-10-16: 401 OI2026-10-21: 435 OI2026-10-23: 443 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, 2026Viewing443+8
Oct 21, 2026435+34
Oct 16, 2026401+44
Oct 15, 2026357+45
Oct 14, 20263120
Oct 13, 2026312+31
Oct 09, 2026281+26
Oct 08, 2026255+20
Oct 07, 20262350
Oct 06, 2026235+6
Oct 05, 20262290
Oct 02, 2026229No prior observation