A merchant bank is a financial institution providing capital to companies in the form of share ownership instead of loans. A merchant bank also provides advisory on corporate matters to the firms in which they invest. In the United Kingdom, the historical term "merchant bank" refers to an investment bank.
Today, according to the US Federal Deposit Insurance Corporation (FDIC), "the term merchant banking is generally understood to mean negotiated private equity investment by financial institutions in the unregistered securities of either privately or publicly held companies." Both commercial banks and investment banks may engage in merchant banking activities. Historically, merchant banks' original purpose was to facilitate and/or finance production and trade of commodities, hence the name "merchant". Few banks today restrict their activities to such a narrow scope.
Merchant banks are in fact the first modern banks. They emerged in the Middle Ages from the Italian grain and cloth merchants community and started to develop in the 11th century during the large European fair of St. Giles (England), then at the Champaign fairs (France). As the Lombardy merchants and bankers grew in stature based on the strength of the Lombard plains cereal crops, many displaced Jews fleeing Spanish persecution were attracted to the trade. The Florentine merchant banking community was exceptionally active and propagated new finance practices all over Europe. Both Jews and Florentine merchants perfected ancient practices used in the Middle East trade routes and the Far East silk routes. Originally intended for the finance of long trading journeys, these methods were applied to finance the medieval "commercial revolution".
In France during the 17th and 18th century, a merchant banker or marchand-banquier was not just considered a trader but also received the status of being an entrepreneur par excellence. Merchant banks in the United Kingdom came into existence in the early 19th century, the oldest being Barings Bank.