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Okama is online portfolio analysis tool for backtesting & forecasting, monte carlo simulation and optimization (efficient frontiers). It's build on free & open source code, maintained by community for quantitative finance.
Okama Portfolio Analyzing ToolsFree & open source portfolio, ETF and stocks analyzing tools
Sergey Kikevichleft a comment
Great tool to compare assets (stocks, ETF, indexes, crypto, commodities, currencies), build portfolio and optimize it: Efficient Frontier, Monte Carlo, TransitionMap. It's similar to PortfolioVisualizer.com but has international stocks (NYSE, LSE, Europe, Israel etc.) It's possible to calculate all risk & return metrics in different base currencies.
Okama Portfolio Analyzing ToolsFree & open source portfolio, ETF and stocks analyzing tools