Users: rabbi_geoff: http://www.ritholtz.com/blog/wp-content/uploads/2012/06/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.gif

The definition of 'Household sector' is: 

or most categories of financial assets and liabilities, the values for the household sector are calculated as residuals. That is, amounts held or owed by the other sectors are subtracted from known totals, and the remainders are assumed to be the amounts held or owed by the household sector. For example, the amounts of Treasury securities held by all other sectors, obtained from asset data reported by the companies or institutions themselves, are subtracted from total Treasury securities outstanding, obtained from the Monthly Treasury Statement of Receipts and Outlays of the United States Government, and the balance is assigned to the household sector. 

Therefore, it can be hedge funds, mutual funds, etc. The unwind is going to be epic