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Contract OI history

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Dec 18, 2026 EXPIRATION

PSX $320.00 Call

PSX261218C00320000

Latest saved OI79Oct 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. 79390 2026-10-02: 50 OI2026-10-05: 52 OI2026-10-06: 52 OI2026-10-07: 52 OI2026-10-08: 54 OI2026-10-09: 54 OI2026-10-13: 58 OI2026-10-14: 58 OI2026-10-15: 66 OI2026-10-16: 75 OI2026-10-21: 78 OI2026-10-23: 79 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, 2026Viewing79+1
Oct 21, 202678+3
Oct 16, 202675+9
Oct 15, 202666+8
Oct 14, 2026580
Oct 13, 202658+4
Oct 09, 2026540
Oct 08, 202654+2
Oct 07, 2026520
Oct 06, 2026520
Oct 05, 202652+2
Oct 02, 202650No prior observation