Bain Capital Fund X LP is a limited partnership based in the Cayman Islands. As of 2009, it held $2 billion in assets and reported a $1.2 million decrease in capital.
In 2011, the Ann D. Romney Blind Trust held between $500,000 and $1 million in the fund, earning between $200 and $1,000 in income.
The 2010 return of the Ann Romney Trust reports income from the fund's general partner, Bain Capital Partners X LP.
Bain Capital X Coinvestment Fund LP is limited partnership based in the Cayman Islands. As of September 2010, it held $46 million in assets and reported a $1.9 million net investment loss for the nine months ended September 30, 2010. It is primarily concerned, according to its audited financial statements, with investing in "certain transaction concurrently with Bain Capital Fund X LP." The coinvestment fund shares a general partner—Bain Capital Partners X LP—with Bain Capital Fund X LP.
Romney's 2011 financial disclosure lists the coinvestment fund among his assets, but shows zero holdings and earnings.