The British Pound Sterling (GBP) is a major global reserve currency and is widely accepted in financial markets. It is the fourth most traded currency in the foreign exchange market, after the US dollar, euro and Japanese yen. GBP is used as an investment and trading currency, as well as a store of value, making it an attractive option for investors and traders. Investors can use GBP to buy stocks and bonds, and trade in foreign markets. It is also used to settle contracts and facilitate international transactions. As a reserve currency, it can provide stability and liquidity to global markets. Lastly, GBP is used to hedge against fluctuations in other currencies.