As the US government’s balance sheet deteriorated, tech companies’ fortress-like balance sheets looked relatively attractive. Investors also sought assets capable of preserving purchasing power amid sticky inflation. Because tech company earnings are to a large degree tied to nominal GDP, their revenues and cash flows rise alongside inflation, making equities an effective US inflation hedge. Since 2020, the S&P500 has outperformed bonds by roughly 14% annualized.
These factors helped justify unusually high valuation multiples and, to a large degree, insulate tech stocks from higher interest rates. That investment case is beginning to weaken as hyperscalers continue to take on significant debt to finance their AI infrastructure spending. As leverage rises, these companies’ balance sheet attractiveness compared to the US government’s will decline.
This year is likely to see record investment-grade issuance approaching US$2 trillion from a handful of hyperscalers. Many people are focused on whether these investments will generate sufficient returns and ultimately prove accretive to earnings. The more important question may be what increased leverage does to multiples.