Sera Prognostics Inc Operating Expense Ratio 5 year CAGR is NA for the year ending December 31, 2023. The operating expense ratio represents the proportion of a company's operating expenses to its revenue. It is calculated by dividing the operating expenses by the revenue. This ratio provides insights into the efficiency of a company's cost structure and its ability to control operating expenses relative to its revenue generation. A lower ratio indicates higher operational efficiency and cost management, while a higher ratio suggests higher operating expenses relative to revenue. 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.