by CI Staff
Portfolio123 is a web-based stock investment service that provides everything from model portfolios to stock screening and strategy backtesting. Investors can create and test their own strategies and ranking methods, use those provided by the service, and analyze a wealth of in-depth and downloadable data. Although general membership is free, most of the website’s services are only accessible with a premium membership, which is quite expensive for an individual investor, but potentially worth the price.
When searching through the massive stock universe for potential investments, screening tools are of tremendous value, but they are difficult to perfect. In addition to the fact that an investor’s method may simply not work, screens are often too stringent with their criteria. In other words, just because an investor can get results down to 10 passing companies does not mean they are all winners.
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