Bulge bracket banks are the world's largest multi-national investment banks, serving mostly large corporations, institutional investors and governments. The terme "Bulge Bracket" comes from the way investment banks are listed on the "tombstone", or public notification of a financial transaction;, where the largest advisors on investment banking operations (mergers, acquisitions, IPOs, or debt issuance) are listed first. The term is primarily related to the financial advisory side of the business, as opposed to sales and trading.
Bulge bracket banks usually provide both advisory and financing banking services, as well as the sales, market making, and research on a broad array of financial products including equities, credit, rates, commodities and their derivatives. They are also heavily involved in the invention of new financial products, such as mortgage-backed securities (MBS) in the 1980s, credit default swaps in the 1990s and collateralized debt obligations (CDO) in the 2000s and today, carbon emission trading and insurance-linked products.
Bulge bracket firms are usually primary dealers in US treasury securities. Bulge bracket banks are also global in the sense that they have a strong presence in all four of the world's major regions: the Americas, Europe, the Middle East and Africa (EMEA) and Asia-Pacific (APAC).
The name comes from the way investment banks are listed on the "tombstone", or public notification of a financial transaction; the more important banks in a syndicate are listed first. There is often debate over which banks are considered to belong to the bulge bracket. Various rankings are often cited, such as Bloomberg 20, Mergermarket M&A league tables, or Thomson Reuters league tables, as well as other rankings.
According to biographer Ron Chernow's 1990 book The House of Morgan, "in the late 1960s and early 1970s, the top tier—called the bulge bracket—consisted of Morgan Stanley; First Boston; Kuhn, Loeb; and Dillon, Read." Morgan Stanley appeared above the other members of the bulge bracket by demanding and receiving the role of syndicate manager.