Don't Just Invest.
Stress Test.

From institutional-grade backtesting to daily Watch Dog alerts, we give you the tools to build a bulletproof portfolio.

No credit card required · Institutional Data Feed

A portfolio is more than one return number.

See growth, losses, crisis resilience, and future uncertainty in a few seconds.

Demo portfolio:20% VTI · 20% VIOV · 20% TLT · 20% VGSH · 20% GLD

Growth of $10,000

See how a diversified portfolio compounded over time versus familiar benchmarks.

Golden Butterfly
S&P 500
60/40
$10k$15k$20k$25k$30k$34k201420162018202020222024$19.2k

10Y CAGR

+8.1%

Final value

$19,200

Best year

+23.4%

Worst year

−4.2%

Max drawdown

−11.3%

Drawdowns from peak

A portfolio is easy to love on the way up. This shows what it felt like on the way down.

0%-5%-10%200820202022–11.3%
Max drawdown: −11.3%

Stress test results

Replay major crises and see how the portfolio held up under pressure.

2008 Financial Crisis

Sep 2008 – Mar 2009

-11.3%

vs -51.1%

Held up better

2020 COVID Crash

Feb – Mar 2020

-4.1%

vs -33.9%

Far more resilient

2022 Inflation Shock

Jan – Dec 2022

-11.8%

vs -18.1%

Fell less

Dot-Com Bust

Mar 2000 – Oct 2002

-1.2%

vs -49.1%

Far more resilient

Monte Carlo future paths

The past happened once. This shows what could happen next across many simulations.

$10k$20k$30k$40kyr 0yr 2yr 4yr 6yr 8yr 10

Median outcome

$21,700

10th percentile

$5,900

Prob. of gain

89%

90th percentile

$46,300

Demo data shown for illustrative purposes. Run your own portfolio for real results.

your portfolio’s hidden crash exposure in 20 seconds.

Historical Stress Tests30+ Year HistoryWatchdog AlertsBias-Free Backtests
Monte Carlo SimulationsDividend-Adjusted ReturnsRSU Risk AnalysisDCA Analysis
Institutional-Grade DataAnonymous AccessAI Insights
Data Integrity powered by EODHD

Institutional data feed.
Retail price tag.

Free data sources are full of gaps. Institutional terminals cost $24,000/year. StressTest.pro is built on the EODHD Data Engine the same feed used by quant researchers and digital asset hedge funds.

AI

Multi-Layered Validation

Our proprietary validation layer cross-references multiple global sources to catch edge-case anomalies and corporate action errors before they hit your simulations.

30+ Years History

Data back to 1970 for US tickers — every crash, correction, and recovery.

No Survivorship Bias

We include delisted and bankrupt companies. Excluding "dead" stocks creates fake results.

Auto-Adjusted Prices

Fully split and dividend-adjusted, ensuring simulations reflect actual tradable values.

Global Coverage

70+ exchanges. 150k+ tickers. US, Europe, Asia, and beyond.

Who is it for?

For investors who want to understand risk, not just returns.

StressTest.pro is built for self-directed investors who want to look beyond simple performance charts. It helps users evaluate portfolio drawdowns, stress scenarios, concentration risk, recovery periods, volatility, and long-term risk tradeoffs before making allocation decisions.

The ETF Builder

Primary Focus

Strategic Allocation

Strategic Goal

Uses Deep Historical Backtesting to configure and test the mathematically ideal asset balance.

The Tech Employee

Primary Focus

RSU Risk Management

Strategic Goal

Leverages the Equity Simulator to manage concentration risk and forecast multi-year vesting schedules.

The FIRE Planner

Primary Focus

Retirement Viability

Strategic Goal

Runs Advanced Monte Carlo simulations to stress-test safe withdrawal rates and secure early retirement.

The Portfolio Nerd

Primary Focus

Risk-Adjusted Alpha

Strategic Goal

Uses DCA vs. Lump Sum analysis and custom benchmarks to squeeze out every drop of market efficiency.

Common Questions

Everything you need to know about our institutional-grade data, simulations, and business model.

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Do I need to sign up?

No. Click ‘Get Started Free’ and you're instantly in with an anonymous session. Sign up only when you want to save your portfolios across devices.

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What assets can I analyze?

You can analyze US stocks, ETFs, and Mutual Funds listed on major US exchanges (NYSE, NASDAQ). We utilize EODHD for institutional-grade market data to ensure the highest level of accuracy for your US-based portfolios.

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How accurate is the Monte Carlo simulation?

Highly accurate. We use historical returns, volatility, and correlation matrices derived from the actual price history of your specific tickers—not generic or assumed market averages.

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Are dividends included in the backtest results?

Yes. All of our historical backtests automatically account for dividend payouts and reinvestments (Total Return). This provides a true, realistic picture of how your portfolio would have actually compounded over time.

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bulletproof portfolio?

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