Portfolio Performance (opens in new tab)

An open source tool to calculate the overall performance of an investment portfolio - across all accounts - using True-Time Weighted Return or Internal Rate of Return. Record the full history of your transactions: purchases, sales, taxes, fees, ... Calculate performance indicators such as the True-Time Weighted Rate of Return or the Internal Rate of Return (IRR) for your holdings. Update historical quotes from a variety of sources: Yahoo Finance, Finnhub.io, Quandl, or AlphaVantage. Alternati...