Free Cash Flow The focus on traditional financial statements is data rather than cash flow. However, cash flow is important to investors, managers, and stock analysts. Therefore, decision makers and security analysts need to modify financial statement data provided to them. An important modification is the concept of free cash flow (FCF). Many analysts regard FCF as being the single and most important number that can be developed from the income statements, even more important than net income. The equation for free cash flow is: