EESA, through PPIFs. PPIFs are partnerships, formed specifically for this program, that invest in mortgage-backed securities using equity capital from private-sector investors combined with TARP equity and debt. A private-sector fund management firm oversees each PPIF on behalf of these investors. According to Treasury, the aim of PPIP was to "restart the market for legacy securities, allowing banks and other financial institutions to free up capital and stimulate the extension of new credit." PPIP originally included a Legacy Loans subprogram that would have involved purchases of troubled legacy loans with private and Treasury equity capital, as well as an FDIC guarantee for debt financing. TARP funds were never disbursed for this subprogram. Treasury selected nine fund management firms to establish PPIFs. One PPIP manager, The TCW Group, Inc., ("TCW") subsequently withdrew, and another PPIP manager, Invesco, announced recently that it has sold all remaining securities in its PPIP fund. Private investors and Treasury co-invested in the PPIFs to purchase legacy securities from financial institutions. The fund managers raised private-sector capital. Treasury matched the private-sector equity dollar-for-dollar and provided debt financing in the amount of the total combined equity. Each PPIP manager was also required to invest at least $20 million of its own money in the PPIF. Each PPIF is approximately 75% TARP funded. PPIP was designed as an eight-year program. PPIP managers have until 2017 to sell the assets in their portfolio. Under certain circumstances, Treasury can terminate it early or extend it for up to two additional years. Treasury, the PPIP managers, and the private investors share PPIF profits and losses on a pro rata basis based on their limited partnership interests. Treasury also received warrants in each PPIF that give Treasury the right to receive a portion of the fund's profits that would otherwise be distributed to the private investors along with its pro rata share of program proceeds. The PPIP portfolio, consisting of eligible securities, was valued at $21.1 billion as of March 31, 2012, according to a process administered by Bank of New York Mellon, acting as valuation agent. That was $600 million higher than the portfolio value at the end of the previous quarter. The portfolio value was also affected by Invesco's sale of its remaining securities in March 2012, discussed in greater detail in this section. In addition to the eligible securities, the PPIP portfolio also consists of cash assets to be used