Portfolio123 vs Testfol.io comparison

Portfolio123 focuses on Screeners, Data Visualizations, and Quant while Testfol.io specializes in Backtesting, Correlation, and Risk Metrics. They overlap in 3 categories, so choose based on your preferred workflow and pricing.

Good news—both Portfolio123 and Testfol.io offer free plans. You can try each platform without commitment and only pay when you need premium features.

Portfolio123 is more beginner-friendly with an approachable interface. Both can work for intermediate users.

Portfolio123 provides API access for programmatic data retrieval and custom integrations. Testfol.io doesn't currently offer an API, so you'll need to use their web interface.

Choose Portfolio123 if you need Web‑based quant research terminal for building multifactor ranking systems, stock/ETF screens, and complete rules‑based strategies with no programming, powered by point‑in‑time FactSet data and marketed as free of survivorship and look‑ahead bias., and Supports realistic simulations and backtests over roughly 20 years of history for US, Canadian, and European equities, with custom universes, separate buy/sell rules, position sizing, hedging, and “Book of Strategies” to combine and analyze correlated systems.. Go with Testfol.io if Portfolio Backtester for constructing multi-asset portfolios (tickers like ETFs, mutual funds, and stocks) with cashflow legs and rebalancing controls (incl. rebalance bands)., and Backtest results include performance & risk statistics such as cumulative return, CAGR, MWRR, max drawdown, volatility, Sharpe/Sortino, beta, etc. better fits how you invest.

Both cover Stocks, and ETFs. Portfolio123 also includes Closed-End Funds. Testfol.io adds coverage for Mutual Funds.

Portfolio123 offers real-time data feeds, which is essential for active traders. Testfol.io uses delayed or end-of-day data, which works fine for longer-term investors who don't need up-to-the-second quotes.

Testfol.io supports data exports to CSV. Portfolio123 has more limited export options.

Portfolio123 connects with brokers for portfolio syncing. Testfol.io requires manual portfolio entry or data import.

Portfolio123 includes a stock screener for finding investment ideas. Testfol.io focuses on other analytical tools.

Portfolio123 offers portfolio tracking features. Testfol.io is more focused on research and analysis.