There are three main financial statements all publicly traded companies are required to make available to shareholders -- the income statement, balance sheet, and cash flow statement. Of the three, the cash flow statement is perhaps the least understood by many investors.
In this article, we'll go through the basics of a cash flow statement, the information it contains, and how cash flow is calculated. We'll also go through a real-world example of how you can read and use the information from a cash flow statement.
Cash Flow
How cash flow statements work
A cash flow statement is a financial statement that provides details on the money flowing into and out of a business during a given time period. As the name implies, the central purpose is to show the amount of cash flowing into a business, and it can be very useful when analyzing the financial health of a company.

Note that on company earnings reports, the title of the cash flow statement might be a little different, such as "condensed consolidated statements of cash flows." However, it will always be one of the three main financial statements issued by any publicly traded company.
Components of a cash flow statement
Cash flow statements categorize the money flowing in and out of a business into three different sections. These are:
- Cash flows from operations.
- Cash flows from investment activities.
- Cash flows from financing activities.
Let's take a look at these one at a time.
Cash flows from operations
This is also referred to as operating cash flow. This portion of the cash flow statement contains cash flow activity directly related to the company's business activities. It includes the net income the business generated for the given time period and makes a few adjustments to more accurately reflect true income. For example, depreciation of real estate and equipment is counted against net income, but it isn't an actual expense, so it is added back in on the cash flow statement.
This section also contains information about the money flowing into and out of the business for items related to its revenue-generating activities. For example, accounts receivable and accounts payable are both included in this section, and any deferred revenue is accounted for here as well.
Cash flows from investing
When a business generates cash, it typically doesn't just leave it sitting around in a savings account or in a pile of money somewhere in a warehouse. It takes some of its cash and reinvests it to help fuel growth and/or generate revenue. Some businesses buy shares of stock in other companies, some invest in Treasury securities and other fixed-income investments, and almost all businesses reinvest capital into their own property and equipment needs. All of these things are included in the "investing activities" section of the cash flow statement.
Revenue
Cash flows from financing
In a nutshell, this category includes cash flows related to the company's stock and debt. For example, if the company pays a dividend to shareholders or repurchases shares of stock, these cash flow activities will be included in the financing section. This also includes any debt the company repays, as well as certain tax payments related to equity awards.
Disclosure of non-cash activities
This section is also referred to as the "supplemental cash flow disclosure." There are a few items that aren't included in any of the other three categories mentioned, specifically taxes and interest. If a business pays income taxes or pays interest on its debt, those amounts are typically not included in the cash flow calculation but are listed on the cash flow statement in a separate section.

Here are the key takeaways:
Operating cash flow: In the "operating activities" section, you'll notice that Apple's net income for the quarter was about $36.3 billion. After making adjustments and accounting for accounts payable and receivable transactions, we see that Apple's operating cash flow for the quarter was $29.9 billion.
Free cash flow: In the "investing activities" section, you'll see that Apple spent $2.9 billion on property, plant, and equipment (capital expenditures) during the quarter. Subtracting this from the operating cash flow shows that Apple generated about $27 billion in free cash flow for the quarter. This is the money that allowed it to spend $23.6 billion on stock buybacks, pay almost $4 billion in dividends, and more.
A final thought: While most of the information in the financing, investing, and disclosure sections of the cash flow statement isn't used in either of the above calculations, that doesn't mean it should be overlooked by investors. Cash flows from investment activities can be especially useful for companies where investments are a particularly large component of the company's strategy, such as with Berkshire Hathaway (NYSE:BRK.A)(NYSE:BRK.B).
In the financing section, noticing the cash flows for dividends and repurchases shows how much a company prioritizes the return of capital to investors, and it also lets you know whether their dividends and repurchases are well covered by the cash generated by the business.

