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Contract OI history

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Apr 16, 2027 EXPIRATION

PTC $170.00 Put

PTC270416P00170000

Latest saved OI104Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PTC $170.00 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. 104520 2026-10-09: 102 OI2026-10-13: 102 OI2026-10-14: 102 OI2026-10-15: 102 OI2026-10-16: 102 OI2026-10-21: 102 OI2026-10-23: 104 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, 2026Viewing104+2
Oct 21, 20261020
Oct 16, 20261020
Oct 15, 20261020
Oct 14, 20261020
Oct 13, 20261020
Oct 09, 2026102No prior observation