Playing the stock markets is a great way of making lots of money. It's also a great way of losing lots of money. So, it's very important to track your investments carefully before you end up in a box outside the cornershop at the end of you street.
TakeStock is a freeware app that contains all the basic functions you'll need to monitor and evaluate the actions in the markets.
I don't have much experience of playing the stock markets so I was pleasantly surprised at how easy the program made it for me to operate.
You simply input the symbol of the stock, the amount that you have and the price before TakStock goes away and automatically calculates the losses or gains on the stock.
You can add as many stocks as you like to track, view graphs showing the changes in your stocks over time and monitor prices through time, making it a very useful resource to help you float rather than sink.