Reverse Efficient Frontier — Find Your Optimal Stock Portfolio

The reverse approach

Most apps start with stocks.
We start with you.

Traditional portfolio tools ask you to pick the stocks and pray for returns. We flip it. You tell us your target return and risk — we find the blend that fits.

01

Set your targets

Move two sliders. Pick the annual return you want and the risk you can stomach. Anywhere from conservative 5% to aggressive 200%.

02

We match your blend

Behind the scenes: millions of Monte Carlo simulations and SLSQP optimization on Databricks find the closest-fit portfolio in under a second.

03

Understand the why

AI explains the blend in plain English. See sector exposure, backtest performance, and risk contribution per stock.

See it in action

From "aggressive tech growth"
to a real portfolio.

No more guessing at parameters. Describe what you want — the app translates intent into targets, finds the blend, and shows you why it works.

01 · Describe

Plain English in.
Optimal portfolio out.

Type "aggressive tech growth" or "conservative income." Claude AI parses your intent into a target return, target risk, and sector preferences — then runs the optimization for you. No sliders to tune, no jargon to learn.

Built-in presets for common investor profiles
AI explains how it interpreted your request
Targets are editable if you want to fine-tune

Natural-language search with AI interpretation

02 · Optimize

Your numbers,
your blend.

We match your target against millions of precomputed efficient portfolios in under a second. You see the exact mix, weights, and risk-adjusted return measured by Sharpe ratio.

3-stock or 10-stock optimization (Pro)
Return, risk, and Sharpe ratio at a glance
Interactive sliders for instant re-optimization

Optimal portfolio with sliders and pie chart

03 · Understand

Backtested.
Sector-mapped.
Stress-tested.

Every blend ships with historical performance across 3-month, 6-month, 1-year, and 2-year windows. See max drawdown, realized volatility, sector concentration, and monthly return distribution — the same metrics professional analysts use.

1000+ trading days of historical backtest
Sector concentration warnings
Monthly return sparkline

Holdings, sector exposure, and historical performance

04 · Decide

AI tells you
why it works.
And why it might not.

Claude AI breaks down the strengths, risks, sector analysis, and suggested improvements in plain English. It won't tell you what to buy — but it will tell you what you're actually exposing yourself to.

Plain-English strengths and risks
Sector concentration analysis
Suggestions to lower risk without killing upside

What's inside

Built for serious portfolio thinking.

⌖

Reverse optimization

Set return and risk targets — get back the optimal stock blend from a pool of precomputed efficient portfolios.

✦

AI portfolio insights

Claude-powered explanations of what your blend means and where the risk concentrations sit.

⌕

Natural-language search

"Moderate growth, low risk, tech-tilted." Type plain English. Get a portfolio.

◐

3 or 10-stock blends

Start with concentrated 3-stock portfolios. Upgrade to diversified 10-stock optimization on Pro.

↗

Historical backtest

See how your blend would've performed across 3-month, 6-month, 1-year, and 2-year windows.

◧

Sector exposure

Visualize concentration across Tech, Healthcare, Financials, and more. Spot hidden bets before you make them.

⊕

Sharpe-optimized

Every blend is selected for the best risk-adjusted return at your target — not just raw upside.

Pricing

Try it free. Upgrade when you're hooked.

Free

$0

forever

3 portfolio lookups (lifetime)
3-stock optimizer
Pie chart visualization
Core metrics & Sharpe ratio

Get started

FAQ

What is a "reverse" efficient frontier?

The classic efficient frontier asks: given these stocks, what's the best portfolio? We ask the opposite: given the return and risk you want, what's the best portfolio? We precompute millions of optimal portfolios on Databricks, then find the one that matches your target in under a second.

Is this financial advice?

No. The app is an analytical tool for exploring portfolio combinations and learning about modern portfolio theory. Nothing in the app is a recommendation to buy or sell any security. Always do your own research or consult a licensed advisor before investing.

Where does the data come from?

Historical stock data is sourced from licensed market data providers. Portfolios are optimized using Monte Carlo simulation and SLSQP (Sequential Least Squares Programming) on Databricks, then enriched with sector mapping and backtest analytics.

What's the difference between Premium and Pro?

Premium ($4.99/mo) unlocks unlimited 3-stock optimization plus all AI features — plain-English explanations, natural-language search, and news commentary. Pro ($9.99/mo) adds 10-stock portfolio optimization, sector exposure analysis, and per-stock risk contribution breakdowns.

Can I cancel anytime?

Yes. Subscriptions are managed through the App Store or Google Play. Cancel anytime through your device's subscription settings — you'll keep access through the end of your billing period.

Why "Chosen Homeland"?

Chosen Homeland Solutions is the parent company behind the Reverse Efficient Frontier app and the Cognirithm Money personal-finance app. We build tools that bring serious analytical thinking to everyday investors.

Stop guessing.
Start reverse-engineering.

Free to try. Three lookups on the house.

Download on theApp Store GET IT ONGoogle Play

Most apps start with stocks.We start with you.