Portfolio construction with calculated weights
Describe what the portfolio has to do. LunaTerminal calculates the weights from price history, checks the risk, and explains the result in words a client can follow. No trades are placed.
Updated
How the portfolio builder works
- Set the objective, amount, risk tolerance and horizon.
- Add up to eight requested holdings and any symbols to exclude, and say whether crypto is allowed.
- Add constraints and notes, without personal identifiers.
- The builder calculates the allocation from available price history and runs risk checks and stress scenarios. Missing history or an unmet loss limit stops the build; it never fills a gap with an invented number.
Without AI, the builder uses core funds and calculated allocations. If you turn AI on, your selected model chooses assets and writes the explanation, and the objective, constraints and notes are sent to that model's provider. The calculations stay in code either way.
What you can do with the result
- Save the portfolio report, print it or download it.
- Export the holdings as CSV.
- Track drift against live quotes in Finance → Portfolios.
- Compare it with the five risk-profile model portfolios.
Five model portfolios
Conservative, moderately conservative, moderate, growth and aggressive. The eight-question risk questionnaire maps each client to one of them. Long-term return and volatility figures shown with the models are illustrative assumptions, not promises.
Research the holdings
Every ETF has a page with its top holdings and a stock map, every stock has a page with valuation, analysts, dividends and earnings, and look-through analysis shows what a fund portfolio actually owns. The fee impact calculator shows what expense ratios cost over time. Start at ETFs.
Questions
Does the portfolio builder use AI to pick investments?
Only if you turn it on. By default it uses core funds and calculated weights. With AI on, the model selects assets and explains them; the weights and risk checks are still calculated in code.
Where does the price history come from?
From the same named providers as the rest of the site (Tradier, Yahoo Finance, Finnhub, Twelve Data, Tiingo, FRED, the U.S. Treasury and SEC 13F filings), cached and dated.