Today's Morning Movers and Top Ratings: COIN, LYFT, MA, C and More

$Coinbase (COIN.US)$ stock rose 5.1%, with the cryptocurrency exchange benefiting from the news that the U.S. securities regulator has approved the first U.S.-listed exchange-traded funds to track bitcoin.

$Chesapeake Energy (CHK.US)$ stock rose 1.1% and $Southwestern Energy (SWN.US)$ slumped 3.6% after the two boards approved a merger valued at $7.4 billion, creating a gas giant.

$Salesforce (CRM.US)$ stock rose 1.4% after Baird upgraded the cloud-based software company to ‘outperform’ from ‘neutral’, highlighting the company's strong performance last year and current low valuation.

$Chewy (CHWY.US)$ stock rose 1.8% after Barclays upgraded the e-commerce company to ‘overweight’ from ‘equal weight’, highlighting it as a promising candidate for significant returns within the challenging market.

$American Airlines (AAL.US)$ stock rose 1.3% after Jefferies upgraded the carrier to ‘buy’ from ‘hold’, citing cost levers and better utilization.

$Alphabet-A (GOOGL.US)$ stock rose 0.4% following media reports that the tech giant's Google unit is dismissing hundreds of its employees across several divisions to decrease costs and support an ongoing push into artificial intelligence.

$Citigroup (C.US)$ stock fell 1.5% after the banking giant booked about $3.8 billion in combined charges and reserves that will erode its fourth-quarter earnings set to be reported on Friday.

$KB Home (KBH.US)$ stock fell 3% after the homebuilder disappointed with its fourth-quarter results, as the average selling price for its properties fell 4.5% during the quarter.