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Pro Analysis

Top calls: Goldman on Nvidia, Jefferies on gold

A woman walks down a staircase at the Wall Street subway station, New York City.
Scott Mlyn | CNBC
A woman walks down a staircase at the Wall Street subway station, New York City.

Here is the best Wall Street research that's moving stocks Thursday.

1. Goldman says Nvidia is 'virtually unstoppable'

Investors should buy Nvidia shares because the graphics chipmaker's earnings are set to surge from new end markets such as virtual reality, data centers and cars, according to Goldman Sachs.

2. Goldman downgrades red hot Intuitive Surgical

Investors should avoid Intuitive Surgical shares now on slowing growth and valuation, according to Goldman Sachs. The stock of the maker of surgery robots is up 17 percent this year.

3. Jefferies says gold stock Newmont is overvalued

Investors should avoid shares of Newmont Mining, which are up more than 80 percent this year, as the company faces numerous challenges, Jefferies told clients.

4. UBS says this cloud storage play may rally by 40%

The sell-off in shares of Pure Storage this year may be overdone, UBS told clients, predicting 40 percent upside for shares of the cloud computing play on a potential acquisition and a number of other positive catalysts. The bank upgraded the stock to buy from neutral.