How Healthy Are Company Balance Sheets?

Not as healthy as advertised, according to Hussman Funds (h/t Ritholtz):

As the following chart shows (based on Federal Reserve Flow of Funds data), the debt burden of U.S. corporations is near all-time highs, having retreated only modestly since 2009. Debt burdens are elevated regardless of whether they are measured against total assets or net worth. Certainly, corporations are presently benefiting from very low interest rates on corporate debt, which substantially reduces the servicing burden of these obligations. But the combination of high debt levels and low servicing burdens does create a potential risk to corporate health in the event that yields rise in future years. Overall, the picture is fairly stable at present thanks to low yields and high levels of cash-equivalents, but it is important for investors to keep in mind that cash can burn fairly quickly during economic downturns, and debt is not spread evenly across corporations.

The bottom line is that at an aggregate level, corporate balance sheets look reasonable, but are certainly not "stronger than they have ever been in history." Cash levels are elevated, but this is at best a second-order factor (with excess cash representing only a few percent of total assets), while debt remains near record levels relative to total assets and net worth. In any event, balance sheet risks should be evaluated on a business-by-business level, rather than accepting the blanket notion that cash levels are so high that nobody needs to worry about corporate credit risk.

So the main things making companies look stronger are piles of cash (because they've borrowed, but haven't invested, protecting themselves from a credit market seizure) and record low interest rates.  They also are benefiting from record high margins, which only some analysts think can continue.  They better hope things start working out better for us common folks, or they won't be in such a good spot.