BlackRock's assets under management surged 15% year-on-year to a record $10.5 trillion in the first quarter, as more people trusted the company to put their cash to work and markets performed well.The Wall Street titan grew its AUM by $1.4 trillion in 12 months, its first-quarter earnings revealed on Friday. The increase reflected a big net inflow of client funds and a positive market backdrop.BlackRock's revenue increased 11% to $4.7 billion, which helped boost its operating income by 18% to... Read this story