TCW Group, a boutique securities investment firm, plans to raise $1.5 billion from institutions and wealthy individuals to buy distressed mortgage-backed securities. Profits are waiting for the harvest by jumping into the market when others are getting out, TCW told Bloomberg News. The firm’s $520-million TCW Total Return fund was the best performing among mortgage funds for the five years and 10 years ending in 2005, according to fund tracker Lipper Inc., beating out the Pimco Total Return fund, which is nearly 200 times...