Financial analysts use several key indicators to assess a company's level of leverage, which can help them evaluate the company's financial stability and potential for growth. One such indicator is the debt-to-equity ratio, which compares a company's total debt to its equity. A high debt-to-equity ratio can indicate that a company has a significant amount of debt relative to its equity, which can increase its financial risk.

Another important indicator is the interest coverage ratio, which measures a company's ability to pay interest on its debt. A low interest coverage ratio may suggest that a company is struggling to service its debt, which can increase its risk of default.

The debt-to-EBITDA ratio is also commonly used to assess leverage, as it measures a company's debt relative to its earnings before interest, taxes, depreciation, and amortization. A high debt-to-EBITDA ratio can indicate that a company is heavily reliant on debt to generate earnings, which can increase its financial risk.

Overall, financial analysts use a combination of these and other indicators to assess a company's level of leverage, and interpret them in the context of the company's industry and economic conditions.