The
SmartMoney.com website has a very interesting applet called "
Map of the Market". Through this tool users can watch the performance of hundred stocks at a glance. Each colored rectangle in the map represents an individual company. The rectangle's size reflects the company's market cap and the color shows price variation (green means the stock price is up; red means it's down). The companies/rectangles are also organized by category (Energy. Telecom etc.).
However, SmartMoney's map is based on Dow Jones and NASDAQ exchanges. International investors can take a look at
FINVIZ.com, where companies are grouped by stock exchanges around the world.
A similar concept but applied in a different field is
GridMap. In a computing Grid infrastructure it shows the availability of each resource center (a.k.a. Grid site) federated to the Grid. In the example below - captured from CERN's LHC Grid - the rectangle's size reflects the amount of CPUs from each site while the color show the computing cluster's status: green means it is up; red means it's down (i.e., not working).
However, SmartMoney's map is based on Dow Jones and NASDAQ exchanges. International investors can take a look at FINVIZ.com, where companies are grouped by stock exchanges around the world.
A similar concept but applied in a different field is GridMap. In a computing Grid infrastructure it shows the availability of each resource center (a.k.a. Grid site) federated to the Grid. In the example below - captured from CERN's LHC Grid - the rectangle's size reflects the amount of CPUs from each site while the color show the computing cluster's status: green means it is up; red means it's down (i.e., not working).
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