cclite is a lightweight implementation of a community currency registry for local exchange trading systems (LETS) and other alternative money systems. It uses multi-registry, multi-currency, Web-services-based (SOAP) transactions, and is templated to give multi-lingual properties. As of 2009, it has an SMS interface and versions for Debian, cpanel-based, Fedora and Windows XP. As of 2012 it has decimal currencies, templates for many languages, and a REST-style interface for integration with CMS and social networking software.
3D Vertical Bar Graph provides both client and server-side solutions for the incorporation of bar graphs into Web pages. It provides versatile components so that Web authors and Java developers can easily build and publish dynamic and interactive bar graphs. There are many configurable features and functions to both the applet and servlet and as such, the documentation and examples are designed to give both a full understanding of every feature and enable you to implement both the applet and servlet quickly and easily. The series of examples gives an overview of the variety of implementations possible.
Stock Volatility Calculator is a spreadsheet that downloads free historical stock data from the Yahoo! database and calculates the historical or realized volatility of the selected stock. The standard deviation of prices is plotted alongside the stock price chart. The user can freely change the stock used by entering the ticker symbol into the appropriate field and performing a fresh download. Users are also able to change the date range used for the stock data, the number of days back to use for the volatility calculation, and the number of volatility days to use.
AssetsSoSimple is a Web-based asset and purchasing management system. It was built in an easily extensible manner with modules for requests for quotes and purchase orders (including PDF-enabled preview) and timesheets with support for importing from other databases or manual entry.
For improving trading in stocks or futures, it is important to record the trades in a trading journal. By using such a diary one has the possibility to comment, analyze, and review the past trades. Olf's Trading Journal offers the ability to comment the trades with text and pictures. Trades can be classified by user-defined categories. The trades can be imported and exported as CSV files. It is also possible to import and calculate the profit factor, pessimistic return ratio, and other performance measurements.