Spirit Airlines Inc Long-Term Debt to Equity Ratio 3 year CAGR is 29.57% for the quarter ending March 31, 2024, a -14.92% change year over year. The long-term debt to equity ratio measures the proportion of a company's long-term debt to its shareholders' equity. It is calculated by dividing the long-term debt by the shareholders' equity. This ratio helps assess the company's long-term solvency and its reliance on debt financing. A higher ratio indicates a higher level of debt relative to equity, which can increase the company's financial risk and affect its ability to meet long-term obligations. CAGR, or the Compound Annual Growth Rate, quantifies the mean annual growth rate of an investment or financial metric over a specified time span, considering the influence of compounding. It is instrumental in determining the true annualized return on an investment.