Capital expenditure (capex)

Capital expenditure, or capex, is recorded on the balance sheet as property, plant and equipment rather than expensed immediately. The cost is then spread over the asset’s useful life through depreciation, which flows through the income statement. Capex appears in the investing section of the cash flow statement and is subtracted from operating cash flow to calculate free cash flow.

Capex signals how much a company is investing for future growth or to maintain existing operations. In AI, hyperscaler and neocloud capex on data centers, GPUs, networking and power has become a key macro and market variable, supporting earnings for suppliers while raising questions about returns, financing and depreciation assumptions for the spenders. Analysts compare capex with revenue growth, backlog and cash generation.

For allocators, capex guidance shows where demand is heading across the supply chain and whether a company’s investment is being funded from cash flow or from debt. Example: a cloud provider raises its capex plan to expand data center capacity, lifting depreciation expense in later years as the new assets enter service.