Meaning
The structural arrangement of different layers of financing used to fund a venture defines how risk and return are distributed among contributors. Startups organize their funding through a capital stack that dictates the order of repayment in a liquidity scenario. This hierarchy places secured debt at the top and common equity at the bottom.
Founders and early employees typically hold common equity, which resides in the most junior tier of the structure.
Investment Seniority
Senior debt takes precedence over all other obligations during a wind-down or asset sale. Holders of these instruments receive their principal before mezzanine lenders or equity holders get any return. This structure protects debt capital while concentrating the potential upside in the equity layers.
Funding Allocation
Proportions of debt and equity influence the cost of capital and the growth trajectory of the enterprise. When a company relies too heavily on senior debt, the monthly service costs can consume cash required for product development. Equity-heavy configurations avoid monthly interest payments but dilute the ownership of the original builders.
Risk Profile
Each position in the arrangement carries a distinct expectation of risk that correlates with the potential financial return. Common equity holds the highest risk because it is paid last, but it offers unlimited upside if the venture scales.