Prime Rate

What is the Prime Rate?

The term “prime rate” (also known as the prime lending rate or prime interest rate) refers to the interest rate that large commercial banks charge on loans and products held by their customers with the highest credit rating. Typically, the customers with high creditworthiness are large corporations that are borrowing from commercial banks in order to finance their operations with debt.

Breaking Down Prime Rate

Commercial banks usually charge a prime rate that works best with their individualized set of customers, meaning that there are usually many different rates charged across an economy. Because of this practice, single rate figures are usually the average of a number of prime rates charged by several major commercial banks. Since such rates are charged to the most creditworthy customers of a bank, they are usually lower than the interest rates charged to individuals, who are more prone to default.

Despite mostly being of concern to large corporations, prime rates can also be of interest to individuals in society. This is because the rate can affect the interest rates on other financial products such as mortgages, personal loans (credit cards), or loans for small- and medium-sized enterprises (SMEs).

If the top customers of a commercial bank see their credit decrease, it can be an indicator of the downward pressure placed by the economic climate on all borrowers of the bank. Thus, interest rate charges for mortgages or personal loans will likely react to an increase in the prime rate.

Prime Rate vs. Overnight Rate

The prime rate is heavily dependent on the federal rate (or overnight rate). The overnight rate is the interest rate that banks charge on money lent to other banks, which are deemed to be the most creditworthy entities in an economy, next only to the government.

If the overnight rate increases, it can indicate that commercial banks are seeing their credit decrease. If the creditworthiness of the most creditworthy entities in an economy is decreasing, it can be a sign that the overall economy is deteriorating.

Thus, the prime rate is likely to increase as a result, since large corporations are probably also facing more difficult economic conditions. Such circumstances may affect the large corporations’ abilities to pay off existing debt, which, in turn, places downward pressure on their credit scores and ultimately results in hikes in the prime rate.

Creditworthiness and Rates

Large corporations can also affect the prime rate based on the strategy they employ for their capital structure. A company can make itself more creditworthy if it pays off its debt and resorts more to equity to finance its projects and operations. While funding with equity comes with its own advantages and drawbacks when compared to debt financing, both sources are widely used by the majority of large companies.

Additional Resources

CFI is the official provider of the Commercial Banking & Credit Analyst (CBCA®) certification program, designed to transform anyone into a world-class financial analyst.

To keep learning and developing your knowledge of financial analysis, we highly recommend the additional CFI resources below:

• Basis Point
• Effective Annual Interest Rate
• Floating Rate Note
• Fixed Interest Rate
• Key Rate
• See all commercial lending resources
• See all wealth management resources