Six in 60 Seconds: Amazon.com, Marriott and More...

Six in 60
Six in 60

US stocks rose on Monday, helped by a $4.9 billion merger announcement and gains in the tech sector.

So which individual stocks are worth watching today? Here are six that are on the move:

Amazon.com
The online retailer was upgraded to outperform from market perform at William Blair.

-----------Marriott
The hotel operator was downgraded to market perform from outperform at Wells Fargo.

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Sandisk
The tech name was upgraded to buy from neutral at UBS. The price target also increased from $46 to $55.

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Yahoo
The Internet giant was upgraded to buy from hold at Needham.

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Corning
The New York-based company was downgraded to neutral from buy at Goldman Sachs.

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Aetna
This company was downgraded to neutral by UBS. Its price target was also cut to $30 from $38.

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Get the latest stock picks on the CNBC Stock Blog, and see what analysts and others are watching before the bell each day at Analyst Watch.