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Contract OI history

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Mar 19, 2027 EXPIRATION

PSA $220.00 Put

PSA270319P00220000

Latest saved OI223Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSA $220.00 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. 2231110 2026-10-02: 16 OI2026-10-05: 16 OI2026-10-06: 20 OI2026-10-07: 20 OI2026-10-08: 21 OI2026-10-09: 22 OI2026-10-13: 223 OI2026-10-14: 223 OI2026-10-15: 223 OI2026-10-16: 223 OI2026-10-21: 223 OI2026-10-23: 223 OI Oct 02, 2026Oct 23, 2026

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

PSA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20262230
Oct 21, 2026Viewing2230
Oct 16, 20262230
Oct 15, 20262230
Oct 14, 20262230
Oct 13, 2026223+201
Oct 09, 202622+1
Oct 08, 202621+1
Oct 07, 2026200
Oct 06, 202620+4
Oct 05, 2026160
Oct 02, 202616No prior observation