The debt-to-equity ratio (D/E) is a financial ratio indicating the relative proportion of shareholders' equity and debt used to finance a company's assets. Closely related to leveraging, the ratio is also known as risk, gearing or leverage. The two components are often taken from the firm's balance sheet or statement of financial position (so-called book value), but the ratio may also be calculated using market values for both, if the company's debt and equity are publicly traded, or using a combination of book value for debt and market value for equity financially. Usage Preferred stock can be considered part of debt or equity. Attributing preferred shares to one or the other is partially a subjective decision but will also take into account the specific features of the preferred shares. When used to calculate a company's financial leverage, the debt usually includes only the Long Term Debt (LTD). Quoted ratios can even exclude the current portion of the LTD. The composition of equity and debt and its influence on the value of the firm is much debated and also described in the Modigliani–Miller theorem. Financial economists and academic papers will usually refer to all liabilities as debt, and the statement that equity plus liabilities equals assets is therefore an accounting identity (it is, by definition, true). Other definitions of debt to equity may not respect this accounting identity, and should be carefully compared. Generally speaking, a high ratio may indicate that the company is much resourced with (outside) borrowing as compared to funding from shareholders. Formula In a general sense, the ratio is simply debt divided by equity. However, what is classified as debt can differ depending on the interpretation used. Thus, the ratio can take on a number of forms including: Debt / Equity Long-term Debt / Equity Total Liabilities / Equity In a basic sense, Total Debt / Equity is a measure of all of a company's future obligations on the balance sheet relative to equity. However, the ratio can be more discerning as to what is actually a borrowing, as opposed to other types of obligations that might exist on the balance sheet under the liabilities section. For example, often only the liabilities accounts that are actually labelled as "debt" on the balance sheet are used in the numerator, instead of the broader category of "total liabilities". In other words, actual borrowings like bank loans and interest-bearing debt