PS: Leverage means making money from money you don't have ex: loan on rental property. But to classify as highly leveraged you need to risk 10x or more money than you actually have.
PS: Leverage means making money from money you don't have ex: loan on rental property. But to classify as highly leveraged you need to risk 10x or more money than you actually have.
The "money you don't have" part of the definition of leverage isn't necessarily money that you must pay back like a loan or bonds; it can also be money that you may have to pay under certain conditions. Writing naked puts and selling reinsurance is the latter.
From http://community.reinsurance.org/Data/Leverage/Und%20Lvg%202... , we can see that Berkshire's 2005 leverage ratio was 143%. That's fairly low for a reinsurance company, and Berkshire is not highly leveraged.
However, I'm still going to maintain that the marginal increase in leverage from the specific derivatives deal I mentioned was rather high. Most insurance companies have noncyclical liabilities (e.g. the mortality rate doesn't increase in recessions) and procyclical assets(e.g. stocks and bonds that fall in recessions). The sale of puts added a procyclical liability, increasing Berkshire's leverage at the margin.