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Simon Property Group is the largest retail real estate investment trust in the United States. Its portfolio includes an interest in 254 properties: 114 traditional malls, 108 premium outlets, 14 Mills centers (a combination of a traditional mall, outlet center, and big-box retailers), six lifestyle centers, and 12 other retail properties. Simon's portfolio averaged $838 in sales per square foot over the trailing 12 months. The company also owns a 22% interest in Klépierre, a European retail company with investments in shopping centers in 14 countries, and joint-venture interests in 33 premium outlets across 14 countries.

Prologis was formed by the 2011 merger of AMB Property and Prologis Trust. The company develops, acquires, and operates around 1.3 billion square feet of high-quality industrial and logistics facilities across the globe. The company also has a strategic capital business segment that has around $60 billion of third-party assets under management. The company is organized into four global divisions (Americas, Europe, Asia, and other Americas) and operates as a real estate investment trust.