Portfolio Allocation Analyzer
Analyze portfolio weights, target allocation drift, and concentration with a visual allocation chart and CSV import/export.
Use this analyzer to see what your portfolio actually contains—not just what you intended to own. Enter each holding's current market value and optional target weight. The tool calculates weights from total value, shows the largest exposures, and estimates the dollar adjustment needed to reach your targets.
asset,value,target_pct. Use one row per holding. Values should be in the same currency; target percentages should add up to 100% if you want a complete target portfolio.Holdings
| Asset / category | Current value | Target weight % |
|---|
Allocation snapshot
Current weights
Target drift
| Holding | Current weight | Target weight | Drift | Approx. adjustment |
|---|
Interpreting allocation drift
A positive drift means a holding's current portfolio weight is above its target; a negative drift means it is below target. The approximate adjustment is the target dollar value minus the current value. This is a mathematical estimate only: it excludes transaction costs, taxes, minimum trade sizes, bid–ask spreads, and the possibility that your target percentages do not sum to 100%.
What this analyzer does not do
It does not connect to brokerage accounts or fetch prices automatically. Update market values before relying on the results, and consider looking through funds to understand their underlying exposures. Two differently named funds can still own many of the same securities.
A practical note on Portfolio Allocation Analyzer
The question worth answering: This page is most useful when you focus on checking allocation against a real-world risk budget. Reviewing how much of a portfolio depends on equities, bonds, cash, sectors or regions. Start by recording the input source, the date or period covered, and any assumption you had to supply yourself. That makes the result easier to reproduce and helps another person understand what the output actually says.
How to use the result responsibly
Read the output alongside the inputs rather than as a stand-alone verdict. Change one assumption at a time and observe whether the conclusion changes materially. If the tool accepts a range, test more than one plausible case; if it accepts a file or pasted data, preserve an untouched copy of the original. Where the result will support a published claim or an important decision, keep a brief record of the method and source date.
A mistake specific to this kind of task
A category label can conceal overlapping holdings; a portfolio that looks diversified by fund count may share the same underlying exposures. This is why the output should be described as an estimate, diagnostic or comparison where appropriate—not as a guarantee. Avoid mixing currencies, periods, definitions or data sources merely because their labels look similar.
Independent check before acting
Look through fund holdings where possible, include cash and liabilities appropriately, and test allocation under a plausible drawdown. If the result conflicts with a statement, official record, provider terms or the original dataset, investigate the difference before relying on it. The tool is intended to make a task clearer, not to replace the source system or professional advice when the consequences are material.
Reader takeaway: Keep the assumptions visible, verify the underlying evidence and use this result as one part of a reasoned decision.