raised $1.2 billion in stock offerings this year

Rubin also weighed in on department stores at the conference, saying that Nordstrom, which has had sales problems of late, was "like Miss America," for landlords. "Everyone wanted to date her," he said. "All of their deals were done with certain subsidies."

On the topic of Sears Holdings, which also has sales problems, Rubin voiced uncertainty. "We don't know what's going to happen with Sears," he said. "We hope they stay in business, and we hope they're successful."

But the fate of department stores in general depends on their locations. "If it's a great property, the likelihood is the department store won't close," Rubin said. "If it's a problem property, and they do close, it will probably be more difficult to get a replacement tenant. That's the business we're in."