Bitcoin price gains as 14,942 BTC leave exchanges ahead of Fed decision

The central bank of the United States, which sets US interest rates and supervises banks.

Because the dollar is used worldwide, its rate decisions affect borrowing costs and markets in many other countries.

The first and largest cryptocurrency, created in 2009, with a fixed maximum supply and no central issuer.

Its price swings and adoption by funds and companies make it a bellwether for the whole crypto market.

An investment fund that holds a basket of assets, such as the shares in an index, and trades on a stock exchange like a single share.

ETFs offer low-cost, diversified investing and are a fast-growing way people save.