Main Street Data vs Portfolio123 comparison

Main Street Data focuses on Screeners, Data Visualizations, and Stock Comparison while Portfolio123 specializes in Screeners, Data Visualizations, and Quant. They overlap in 5 categories, so choose based on your preferred workflow and pricing.

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

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

Choose Main Street Data if you need Visual dashboards and customizable curated charts for listed companies., and Stock screener with simplified charting for fundamentals and performance.. Go with Portfolio123 if 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. better fits how you invest.

Both cover Stocks. Portfolio123 adds coverage for ETFs, and Closed-End Funds.

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

Portfolio123 connects with brokers for portfolio syncing. Main Street Data requires manual portfolio entry or data import.

Both Main Street Data and Portfolio123 include stock screeners. Try each to see which filtering options and interface you prefer.

Portfolio123 offers portfolio tracking features. Main Street Data is more focused on research and analysis.