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Contract OI history

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Dec 17, 2027 EXPIRATION

PTC $190.00 Put

PTC271217P00190000

Latest saved OI421Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PTC $190.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4212100 2026-10-09: 118 OI2026-10-13: 218 OI2026-10-14: 218 OI2026-10-15: 218 OI2026-10-16: 340 OI2026-10-21: 421 OI2026-10-23: 421 OI Oct 09, 2026Oct 23, 2026

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

PTC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20264210
Oct 21, 2026Viewing421+81
Oct 16, 2026340+122
Oct 15, 20262180
Oct 14, 20262180
Oct 13, 2026218+100
Oct 09, 2026118No prior observation