Billionaire Bill Ackman invests $1.4bn (13% of his portfolio) into Howard Hughes Holdings (HHH).

Billionaire Bill Ackman has invested $1.4 billion (13% of his portfolio) into Howard Hughes Holdings (HHH), a stock largely unknown and misunderstood by investors. The company, named after American billionaire Howard Hughes, has a complex history, originally spun off from General Growth Properties in 2010. Ackman's significant investment in the stock may signal potential for growth and a good buying opportunity.