Arlington Asset Investment Corp. Replay the stock market charts of AAIC day by day, back to 2003. Open long and short positions without spending any money. Arlington Asset Investment Corp. (NYSE: AAIC) currently invests primarily in mortgage-related and other assets and has elected to be taxed as a REIT. The Company is headquartered in the Washington, D.C. metropolitan area. For more information, please visit www.arlingtonasset.com.