The right amount
of everything.
How much of each asset should you own? Get the institutional answer across 42 asset classes, built on what 4 houses expect next rather than what worked last. Free, in your browser.
Full access with just an email · No credit card · Runs privately in your browser
42 ASSET CLASSES · 5 METHODS · 1,000 PATHS · 16 FREE TOOLS
Three Workflows
Optimize. Simulate. Retire.
One platform for the full lifecycle of portfolio construction.
Optimize
Hand it what you already hold. It returns a mix that earns more for each unit of risk taken, and names every trade that gets you there.
MAX SHARPE · MIN VARIANCE · RISK PARITY · HRP · BLACK-LITTERMAN
Simulate
A thousand futures rather than one average one, so you see the unlucky quarter as clearly as the lucky one, and how long the money holds in each.
FAN CHARTS · GUARDRAILS SPENDING · TODAY'S MONEY · FULL RISK METRICS
Retire
What you can actually spend, in pounds a year, with a strategy that raises the figure in good markets and cuts it in bad ones instead of hoping one rate holds for thirty years.
13 RATES × 7 HORIZONS · SURVIVAL HEATMAP · PER-CELL FAN CHART
Figures from the worked example that ships with the app, and from the same run the images beside them were drawn from.
The Difference
Why forward-looking data changes the answer
Almost every free portfolio tool optimises on the past. It feeds in historical returns and finds the mix that would have worked. The trouble is that the last four decades were shaped by falling interest rates and expanding valuations, conditions unlikely to repeat. Optimise on that history and you build a portfolio for a world that has already happened.
Portfolio Lab runs on the kind of forward-looking return, risk, and correlation estimates that pension funds and endowments use, and it does not pick one house's view of them. The default is the average of 4: J.P. Morgan, BlackRock, Research Affiliates and AQR. Averaging is not a hedge against having an opinion, it is the finding: across the research and our own tests, the average of several forecasts beats almost any single forecaster over time, because their errors are large and point in different directions.
Those forecasts are then marked to where the market actually is today, since a house that struck its numbers in October was pricing a different bond market to the one in front of you. You can also switch the whole platform to any single house, or type in your own numbers, and watch every figure move. Seeing how much the answer depends on the assumption is most of the education.
And everything runs in your browser. No account is required for the free tools, and no portfolio data is ever sent to a server. You get the institutional method and the institutional data, without the institutional price tag or the privacy trade-off.
42 ASSET CLASSES · 5 METHODS · 1,000 PATHS · NO CARD
The Universe
Every asset it knows, to scale
All 42 asset classes, drawn from the same registry the optimizer solves against. Nothing here is decoration.
Live Data
The whole macro picture, one view
Indices, yield curves, credit spreads, CAPE valuations, factor performance and FX, in one view, with the levels that matter marked.
Try Before You Sign Up
16 Free Tools
Every one runs right now with no account. A free account adds the rest: all 42 asset classes, saved portfolios and PDF reports.
Markets & valuation
Portfolio construction
Retirement & withdrawal
Explore
Reference allocations, research, and guides
Model Portfolios
Research
Where to start
All four →Pricing
Free. No catch.
One plan. Everything included. No credit card required.
- +42 asset classes, 4 houses averaged
- +5 optimization methods incl. Black-Litterman
- +Monte Carlo simulation with fan charts
- +Retirement analysis with survival heatmaps
- +Historical backtesting (2002–2025)
- +Live market dashboard with CAPE valuations
- +Bitcoin & custom ticker support
- +PDF reports & unlimited saved portfolios
- +Multi-currency (USD, GBP, EUR, AUD, CAD, JPY)
Sign up with an email and the whole platform unlocks. That's it.
Questions
Frequently asked questions
Is Portfolio Lab really free?
Yes. Portfolio Lab is free software, not a free trial. The public tools work with no account at all, and a free account (just an email, no credit card) unlocks the full platform: the complete 42-asset optimizer with all five methods, Monte Carlo simulation, retirement analysis, unlimited saved portfolios, and PDF reports. There is no paid tier waiting to upsell you.
Is Portfolio Lab a website or software?
It works like software: a full portfolio construction application that happens to run in your browser. There is nothing to install and nothing to update. Sign up free with an email and you get the complete optimizer, simulation, and reporting suite, with every calculation running privately on your own device.
What optimization methods does it use?
5: Maximum Sharpe, Minimum Variance, Risk Parity, Black-Litterman with custom views, and Hierarchical Risk Parity, applied across 42 asset classes. These are the same methods used by institutional multi-asset teams.
What data are the numbers based on?
Forward-looking capital market assumptions rather than historical averages, averaged across 4 institutions: J.P. Morgan, BlackRock, Research Affiliates and AQR. Those published figures are then marked to today's market, because each house struck its numbers on a different date. You can switch to any single house instead, or enter your own return and volatility estimates, and every projection on the platform updates.
Do I need a finance background?
No. Each tool explains what it does in plain language and handles the maths for you. When you want the detail, the full methodology documents every formula and data source.
Is my portfolio data private?
Yes. Every calculation runs in your browser. Your holdings, allocations, and projections never leave your device and are never sent to a server.
Can I analyze Bitcoin in a portfolio?
Yes. Bitcoin is a first-class asset with its own forward-looking assumptions, so you can size it with mean-variance optimization, backtest it inside a 60/40, and stress-test it in retirement rather than guess.
Start building better portfolios
One email gets you the full platform: optimizer, simulations, retirement analysis, and PDF reports. Free, with no credit card.
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