A flash crash is a very rapid, deep, and volatile fall in security prices occurring within an extremely short time period. A flash crash frequently stems from trades executed by black-box trading, combined with high-frequency trading, whose speed and interconnectedness can result in the loss and recovery of billions of dollars in a matter of minutes and seconds.
MetaTrader 4, also known as MT4, is an electronic trading platform widely used by online retail foreign exchange speculative traders. It was developed by MetaQuotes Software and released in 2005. The software is licensed to foreign exchange brokers who provide the software to their clients. The software consists of both a client and server component. The server component is run by the broker and the client software is provided to the broker’s customers, who use it to see live streaming prices and charts, to place orders, and to manage their accounts.
The client is a Microsoft Windows-based application that became popular mainly due to the ability for end users to write their own trading scripts and robots that could automate trading. In 2010, MetaQuotes released a successor, MetaTrader 5. However, uptake was slow and as of April 2013 most brokers still used MT4. While there is no official MetaTrader 4 version available for Mac OS, some brokers provide their own custom developed MT4 variants for Mac OS.
Operating virtually around the clock, today the CME Globex trading system is at the heart of CME. Proposed in 1987, it was introduced in 1992 as the first global electronic trading platform for futures contracts. This fully electronic trading system allows market participants to trade from booths at the exchange or while sitting in a home or office thousands of miles away. On 19 October 2004, the one billionth (1,000,000,000) transaction was recorded.
When Globex was first launched, it used Reuters’ technology and network. September 1998 saw the launch of the second generation of Globex using a modified version of the NSC trading system, developed by Paris Bourse for the MATIF (now Euronext).
To connect to Globex, traders connect via Market Data Protocol (MDP) and iLink 2.0 for order routing.