 Shares of Paramount Group Inc. PGRE, 21.15 soared 21.3 toward an 8-month high after the real estate investment trust REIT focused on officer properties confirmed it received an unsolicited buyout bid from private-equity firm Monarch Alternative Capital LP. The bid, for 12 a share in cash, represents a 29.2 premium over Thursdays closing price of 9.29, and implies a market capitalization for Paramount of about 2.2 billion. 