A Fibonacci retracement is a key technical analysis tool that uses percentages and horizontal lines, drawn onto price charts, to identify possible areas of support and resistance. Identifying these areas is useful to traders since it can help them decide when to open and close a position, or when to apply stops and limits to their trades.

A fiat currency is a national currency that is not pegged to the price of a commodity such as gold or silver. The value of fiat money is largely based on the public’s faith in the currency’s issuer, which is normally that country’s government or central bank.

The Federal Reserve bank, or the ‘Fed’ for short, is the central bank in charge of monetary and financial stability in the United States. It is part of a wider system – known as the Federal Reserve System – with 12 regional central banks located in major cities across the US.