Experience institutional-grade analysis right now. Jump into an anonymous session to backtest history, simulate futures, and optimize your allocations.
Jump straight into the app. Create a new portfolio and add your assets—mixing US stocks, ETFs, and mutual funds. Set your allocation weights and choose a benchmark like the S&P 500.
Instantly see how your exact portfolio would have performed over the last 20+ years. Discover how your allocation survived major market crashes like 2008 or COVID-19, and instantly view your Sharpe ratio, max drawdown, and CAGR.
Take your analysis further. Use the Tools menu at the top to run 10,000 Monte Carlo future simulations, use the Optimizer to find your mathematically ideal asset balance (like Max Sharpe or Min CVaR), or generate plain-English AI insights—all before ever saving an account.
Don't just run numbers. Understand them. Explore our interactive guides to learn how to interpret sophisticated financial modeling.
Instead of assuming a flat average return, see the full distribution of outcomes. Learn how to interpret the 10th percentile (P10) to safe-guard against market crashes and manage sequence-of-returns risk.
Read Interpretation GuideUse institutional-grade models like Mean-Variance and Black-Litterman to find the exact asset weights that maximize your Sharpe Ratio. Our charts show you exactly where your portfolio sits on the risk-reward curve.
Learn About OptimizationAfter every analysis, our Gemini-powered AI translates complex data into a plain-English summary of your portfolio’s mechanics, highlighting historical risk factors and structural strengths.
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.
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.
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.
No. StressTest.pro is a quantitative analysis tool. All results are for educational and research purposes only.
Our data spans over 30 years of market history. This allows you to rigorously stress-test your exact asset allocation against major historical market events, including the Dot-Com Bubble, the 2008 Financial Crisis, and the 2020 COVID-19 crash.
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.
No, and we will never ask you to. StressTest.pro is a standalone analysis engine. You simply type in the ticker symbols and target weights you want to test. Your financial data remains completely private.
You will automatically be downgraded to our Free tier. You will never be charged unexpectedly, as we do not require a credit card to start using the platform or to access your free trial runs.