Final answer:
Prime Brokerage customers must maintain a minimum Net Equity as specified by the brokerage firm, which varies based on regulatory and institutional requirements. Net Equity is calculated as the value of total assets minus total liabilities. Without exact figures from the brokerage, we cannot provide a specific minimum requirement.
Step-by-step explanation:
The question asks what is the minimum Net Equity that Prime Brokerage customers must maintain. Net Equity is defined as the total value of assets minus any liabilities that might exist. For instance, if we take the provided example of a bank's balance sheet, where the net worth is indicated to be the assets minus the liabilities, and we parallel that with Prime Brokerage, the minimum Net Equity requirement would typically be a specific figure set by the brokerage to ensure a cushion against market volatility and to meet regulatory requirements.
Unfortunately, the exact figure required by a Prime Brokerage isn't provided in the question or the supplementary information. It varies among institutions and depends on regulatory standards as well as the individual brokerage's policies. Therefore, to give an exact figure without this information would be speculative. However, if we were to look at an example where the net worth of 'Safe and Secure Bank' is $2 million, that would be based on its total assets of $11 million minus its total liabilities of $10 million, illustrating how net equity is calculated in a similar context.