An analysis by The Wall Street Journal found that private markets have more than doubled in size over the past decade, surpassing the growth of public stocks and bonds available to all investors. That’s transforming how companies grow, concentrating investing in fewer hands and raising concerns on oversight...

An analysis by The Wall Street Journal found that private markets have more than doubled in size over the past decade, surpassing the growth of public stocks and bonds available to all investors. That’s transforming how companies grow, concentrating investing in fewer hands and raising concerns on oversight...