Portfolio123 is a game-changer for stock investors, providing a powerful platform for the design, simulation, and deployment of quantitative financial models.It also has stock screening, charting (including YChart style), trading (via Interactive Brokers and Tradier), macro economics charting, watchlists, an earnings center, cross-section series plotting, external data importer, a data API, stock news, stock summary snapshots, stock comparison tool, sector/Industry performance, fundamental and estimate summaries, a user forum and more (really). In the near future, machine learning will be supported. It's not just another retail-level tool; it's the only one that I’ve found to work in practice. To find something better, I suspect you'd have to go professional and spend significantly more.I've been a loyal subscriber for over a decade, which speaks volumes about its effectiveness.Is there a downside? Sure, building successful trading models is hard work, but with dedication and focus, it's possible to be successful. Whether you're researching stocks, building and simulating quantitative models, or managing accounts, Portfolio123 has what you need.
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Portfolio123 is the best web-based resource for investors. It allows you to discover exciting new stock/ETF ideas, create investment strategies using ranking and screening, backtest them with realistic simulations, and implement them in real-time with advanced trading tools -- including seamless and commission-free trading across multiple accounts.
