Portfolio tracker vs investment journal

A portfolio tracker tells you what changed in the numbers. An investment journal helps you understand what changed in the reasoning.

Workflow areaPortfolio trackerGiroku investment journal
Primary jobBalances, allocation, price movement, and performance.Reasons, support, decisions, notes, and review notes.
Question answeredWhat is the portfolio worth and how did it move?Why did I own this and does the reason still hold?
Common gapThe numbers move, but the original reasoning is missing.The reasoning stays available beside portfolio context.

Portfolio tracker is best when

Giroku fits when

Fair caveat

Giroku can show useful portfolio context, but its core wedge is investment memory, not full broker-grade performance reporting.