This article analyzes the relationship between “financialization” and the performance of credit institutions in Mexico over the period 1999–2013. On average, foreign banks have higher cost-to-income ratio and return on assets than domestically owned banks. Non-interest income to gross revenue positively contributes to foreign bank profits, which highlights income other than conventional banking transactions. When considering references in the literature to non-interest income as a proxy for financialization, our results imply that domestic banks are more dependent on traditional lending, such as interest-earning assets, whereas foreign banks seem to engage in greater diversification to support profitability. Overall, the banking system reveals tendencies (“financialization”) that can possibly work against credit facilitation in Mexico.