Meet the plugged-in players whom billionaire Ken Griffin is relying on to get Citadel’s new headquarters off the ground ...

Ken Griffin is partnering with Related Cos ... Both Citadel and Citadel Securities will have their headquarters at the new Miami building. Griffin had initially teamed up with Sterling Bay ...

Single-family homes priced below $500,000 are getting harder to come by, as wealthy buyers drive up demand for high-end homes ...

The long-touted Midtown skyscraper being developed through a partnership that includes billionaire Ken Griffin is scheduled ... replace aging office stock with new and competitive spaces.