American Capital Mortgage Investment, a newly formed mortgage REIT managed by American Capital MTGE Management, announced terms for its IPO on Wednesday. The Bethesda, MD-based company plans to raise $350 million by offering 17.5 million shares at a price of $20. At the proposed price, American Capital Mortgage Investment would command a market value of $375 million. American Capital Mortgage Investment plans to list on the NASDAQ under the symbol MTGE. Citi, Deutsche Bank Securities, and UBS Investment Bank are the lead underwriters on the deal, which is expected to price the week of August 1st.