Today's Research Daily features new research reports on 16 major stocks, including Tesla, Inc. (TSLA), UnitedHealth Group Incorporated (UNH) and Oracle Corporation (ORCL), as well as a micro-cap stock Earth Science Tech,

UnitedHealth Group on Thursday named Tim Noel, the head of its Medicare business, to the top job at its health insurance business, a month after the unit’s former CEO Brian Thompson was killed. Noel will take charge at UnitedHealthcare, the largest U.S. health insurer that provides benefits to more than 50 million Americans, at a critical moment.

The company said Thursday that Tim Noel will be CEO of UnitedHealthcare, replacing Brian Thompson, who was killed in New York City in December.

UnitedHealth CEO Andrew Witty said on Thursday that healthcare in the U.S. needs to be "less confusing, less complex and less costly" during the company's first earnings call since the murder of Brian Thompson,

U.S. stock markets experienced a downturn on Thursday, with the Nasdaq Composite shedding over 170 points and ending the day at 19,338.29.

U.S. stock indexes drifted lower following a mixed set of earnings reports from Morgan Stanley, UnitedHealth Group and other big companies

UnitedHealth Group promoted the head of its Medicare health plan business to lead the company’s broader insurance division, filling the job previously held by slain executive Brian Thompson.

The U.S. government said late Friday that it will increase Medicare Advantage reimbursement rates by 2.2% next year, that along with a 2.1% boost in 'risk score' will likely contribute to an extra $21 billion in payments to private insurers.

Thursday's trading session has presented significant movements among stocks, particularly within the mega-cap and large-cap segments. Market participants have witnessed notable declines in heavyweight stocks like UnitedHealth Group (UNH) and Tesla Motors (NASDAQ:TSLA),

UnitedHealth Group (UNH) announced a new chief executive officer for its health insurance unit, UnitedHealthcare, Thursday, filling the role after Brian Thompson was shot to death last month in New York City.

Shares were mostly lower in Asia on Friday after China reported that its economy grew at a 5% annual pace last year, hitting the government’s target but slowing from the year