Yuri Gripas/Reuters Morgan Stanley's wealth-management business produced record revenue in the third quarter. Most of its clients are very wealthy — its CEO says 98% of assets come from people with more than $100,000 at the bank. A growing opportunity is to lend these rich people, who often have illiquid assets like real estate or business equity, more money. Morgan Stanley reported third-quarter earnings this week and landed a solid beat with earnings of $0.93 a share, higher than expectations of $0.81. The company's thriving wealth-management business helped drive the strong quarter, reporting $4.2 billion in revenue — a record — up 9% from $3.9 billion a year ago.