The vast majority of banks leverage their commercial lending relationships in the form of RCFs or other lending products into capital markets roles and use these two relationship areas as a platform from which to engage in I bank business. For example BOA or JPM are consistently the lead banks when it comes to corporate lending and consequently they sit at the top of underwriting league tables. They have built out, well established and meaningful i bank franchises based on this footprint. Please note those initial loans are by extension funded by their relatively low cost of funding based on having huge deposit bases.
In terms of traditional I banks like GS or Jeffries they donāt have the access to relatively cheap capital (I think this is your reference to GS) because they arenāt meaningful retail deposit takers. Their franchises are based on C suite relationships, expertise and often extremely well constructed and professional markets teams.
Career wise, at junior levels the bigger the bank the more these roles are well defined and movement limited. In my earlier post I tried to describe the different roles. In many cases a desire to move within this construct is what causes kids to go for the MBA.
At senior levels these business are all interrelated and contingent upon one another but at junior levels the goal is to thoroughly train the analysts within one spoke of a complex wheel.
I will try again to convey the cycle in an over simplified wayā¦
1- Retail deposits received.
2- Those funds lent out to corporate customers.
3- Corporate customers reward those lender banks with financial markets business and fees when they access global capital markets.
4- Financing (access and cost) tends to be at the root of most I banking decisions. Consequently 3/4 are an excellent platform to build an i banking franchise.
5- The totality of NIM (net interest margins) on the loans + financial markets fees (transaction and hedging) + I bank opportunities and fees = the total return. This total is compared to the capital used by the customer to derive a āreturnsā number and compared to the banks cost of capital to determine profitability.
Sorry for the geeky and simplified explanation but I offer it so that future unfamiliar readers appreciate the interdependence of retail/commercial/I bank.