Former finance professional here: Ford is actually worth 3 times as much as Tesla, once you factor in debt. The total value of the Ford capital structure ("enterprise value") is about 150 billion. When two companies have wildly different capital structures, you have to compare them on enterprise value, not the market cap of their equity. So while I give kudos to Tesla for building a valuable business, it still has a…
[edit]: Current finance professional here. > When two companies have wildly different capital structures, you have to compare them on enterprise value, not the market cap of their equity. So while I give kudos to Tesla for building a valuable business, it still has a long way to go to catch up to Ford. That is not necessarily true. Market cap and enterprise value are two equally valid ways of measuring value or worth…
2: Equity Value therefore represents the market's perspective of the Net Present Value of the future cash flows less the value of the debt. Those flows, calculated using a discounted cash flow spreadsheet, could be from profits, or could be from sale of assets.
3: The analysts will forecast the Enterprise delivering a certain IRR - annualised percentage return, which is split between the debt and equity. This total return is called the weighted average cost of capital - WACC.
4: Debt is cheaper than equity, and it also has a lovely tax shield effect from the interest expense.* Debt holders get the company when the value falls underneath the total value of the debt though, so you don't want to issue too much.
5: Equity (shareholders) demand much higher returns than banks, but accept the greater risk for it. e.g. VCs have much higher expectations than banks about their returns.
6: The more debt you have the higher the returns - and risk - for the equity. Think about the leverage you can get on a house - an asset with low % returns can deliver high value (or high loss) by using a lot of bank debt.
7: There is a body of work around finding the optimum level of equity and debt for a company - basically you want to balance the risk from having too high debt (and the company value falling underneath that value and using all the equity) and the benefits of higher returns to equity=holders from having higher debt.
Going back the the original post - EV is the real value of the company, not market cap. Ford could sell down their debt by issuing more equity, Tesla could issue debt and reduce the share of equity. It all comes back to EV.
*This makes the weighted average cost of capital vary slightly as the amount of debt changes.