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Contract OI history

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Apr 16, 2027 EXPIRATION

PTC $185.00 Put

PTC270416P00185000

Latest saved OI2,196Oct 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 $185.00 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. 2,1971,0980 2026-10-09: 1,108 OI2026-10-13: 1,109 OI2026-10-14: 1,109 OI2026-10-15: 1,213 OI2026-10-16: 2,197 OI2026-10-21: 2,196 OI2026-10-23: 2,196 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, 2026Viewing2,1960
Oct 21, 20262,196-1
Oct 16, 20262,197+984
Oct 15, 20261,213+104
Oct 14, 20261,1090
Oct 13, 20261,109+1
Oct 09, 20261,108No prior observation