Introduction
The investing section of the cash flow statement is where strategy turns into spending. Operating cash flow shows what a business generates; investing cash flow shows what it chooses to do with that cash: build factories and data centers, buy other companies, park money in securities, or sell assets it no longer needs. Alphabet's 2024 statement shows all of these at once, led by a jump in capital expenditure from $32.3 billion to $52.5 billion in a single year.
For a banker, the section answers three questions. How much does the business need to reinvest to keep growing? How much growth is being bought rather than built? And how much of the cash movement is simply the company shifting money between cash and investments? Separating those three, line by line, is the key to reading investing cash flow correctly.
What Investing Activities Include
Under Accounting Standards Codification (ASC) 230, investing activities cover cash flows related to long-term assets and to investments in other entities and securities. The main lines are:
- Capital expenditure: purchases of property, plant and equipment, and often capitalized software.
- Acquisitions: cash paid for businesses, net of the cash those businesses held.
- Securities and investments: purchases, sales and maturities of marketable securities and other investments.
- Proceeds from disposals: cash received from selling property, businesses or investments.
- Loans made and collected: for non-financial companies, loans to other parties and their repayment.
- Capital expenditure (capex)
Cash spent to acquire or improve long-lived physical assets such as property, plant and equipment, and in many companies capitalized software. It appears in investing activities and is deducted from operating cash flow to calculate free cash flow.
The section is usually negative for a healthy, growing company, because it invests more than it receives from disposals. A positive figure is not necessarily good news: it can mean a company is selling assets to raise cash, or simply that maturing securities exceeded new purchases. Where the section sits relative to operating and financing activities is explained in how the cash flow statement works.
Reading Alphabet's Investing Section
Alphabet's 2024 cash flow statement shows how the lines combine for a company with heavy capital spending and a large securities portfolio:
| Line item | 2023 | 2024 |
|---|---|---|
| Purchases of property and equipment | (32,251) | (52,535) |
| Purchases of marketable securities | (77,858) | (86,679) |
| Maturities and sales of marketable securities | 86,672 | 103,428 |
| Purchases of non-marketable securities | (3,027) | (5,034) |
| Maturities and sales of non-marketable securities | 947 | 882 |
| Acquisitions, net of cash acquired, and purchases of intangible assets | (495) | (2,931) |
| Other investing activities | (1,051) | (2,667) |
| Net cash used in investing activities | (27,063) | (45,536) |
Source: Alphabet 2024 Form 10-K. Net cash provided by operating activities was 101,746 in 2023 and 125,299 in 2024.
Three readings emerge. First, capital expenditure rose about 63%, the clearest sign of a strategic shift toward building computing capacity. Second, the marketable securities lines are large in both directions but net to an inflow of about $16.7 billion in 2024: Alphabet sold or let mature more securities than it bought, effectively funding part of its capex from its investment portfolio. Third, acquisitions are small, so Alphabet's growth was overwhelmingly built rather than bought in these two years. The total investing outflow of $45.5 billion understates the capital being deployed into the business, because the securities inflow offsets part of the capex.
Capital Expenditure: Maintenance and Growth
Capital expenditure is the line bankers scrutinize most, because it is the cost of sustaining and expanding the asset base behind every forecast. Analysts often divide it into two parts:
- Maintenance capex: spending needed to replace worn-out assets and keep current capacity running.
- Growth capex: spending that adds new capacity, new products or new locations.
Companies rarely disclose the split, so analysts estimate it. A common rough proxy is that maintenance capex for a mature business approximates depreciation, because depreciation allocates the cost of the assets being used up; spending well above depreciation then indicates growth investment. Alphabet's capex rose about 63% in 2024 while its revenue grew about 14%, a gap consistent with heavy expansion rather than replacement. The proxy is imperfect, since inflation raises replacement costs above historical depreciation and asset lives vary, but it gives a starting point that management commentary can refine.
- Maintenance capital expenditure
The portion of capital spending required to keep a company's existing assets operating at current capacity, as opposed to growth capital expenditure that adds new capacity. It is rarely disclosed and is usually estimated, often with depreciation as a rough proxy for a mature business.
The split matters because it changes what free cash flow means. A company with large growth capex has depressed free cash flow today that should, if the investments succeed, produce higher cash flow later; a company that cuts maintenance capex can lift free cash flow temporarily while its assets age. The free cash flow measures built from this line are set out in free cash flow definitions, and the industrial perspective on capacity in the Industrials guide's discussion of maintenance vs growth capex.
Capex Paid and Capex Incurred
The capex line on the cash flow statement records cash paid, not assets acquired. Equipment received near the period end but paid for after it is excluded from the line and disclosed instead as a non-cash investing item, often labeled property and equipment acquired but not yet paid. During a building program the difference can be large, so the capex reported in the cash flow statement can lag the actual investment by a quarter or more. Bankers usually use the cash figure for free cash flow, but read the non-cash disclosure to understand commitments that will consume cash soon, along with any disclosed capital commitments for projects under construction.
Acquisitions and Disposals
Cash paid for acquisitions appears as a single investing line. Deloitte's roadmap on business combinations in the statement of cash flows explains that all cash paid to purchase a business is presented net of the cash and cash equivalents acquired, and that the acquired company's individual assets and liabilities do not appear as separate lines. Acquisitions paid in shares involve no cash and are disclosed as non-cash investing and financing activities instead, as covered in supplemental disclosures.
Disposals work in reverse. The full cash proceeds from selling property, a business or an investment appear as an investing inflow, while any gain or loss on the sale is removed from operating cash flow so it is not counted twice. A company in the middle of a portfolio reshaping can therefore show large positive investing cash flow for a year or two, which says nothing about whether its ongoing operations generate cash.
What Bankers Take From the Investing Section
Bankers read the investing section for capital intensity, the ratio of capex to revenue and to depreciation, and for the balance between building and buying growth. In credit work, they check whether operating cash flow covers capex comfortably, and whether committed capital projects will strain liquidity. In valuation, they test whether projected capex is consistent with projected growth: a forecast that shows rapid revenue growth with capex at maintenance levels is usually too optimistic. The mechanics of capitalization itself are covered in capitalizing vs expensing costs.
Read together with operating cash flow, the investing section shows whether a company funds its ambitions from its own operations or must reach for external capital, and how much of its future depends on the investments it is making today.
