Here are Friday's biggest analyst calls of the day: Tesla, Caterpillar, airlines & more

Key Points
  • Goldman Sachs downgraded Tesla to neutral from buy.
  • Morgan Stanley downgraded Tesla to underweight from equal weight.
  • Goldman Sachs upgraded General Motors to buy from hold.
  • BMO downgraded Caterpillar to market perform from outperform.
  • Credit Suisse upgraded Southwest Airlines to outperform from neutral.
  • Credit Suisse downgraded United Airlines to neutral from outperform.
  • MKM upgraded Take-Two to buy from neutral.
  • Guggenheim initiated WW as buy.
  • SunTrust upgraded Dave & Buster's to buy from hold.
Elon Musk, co-founder and chief executive officer of Tesla Motors.
Yuriko Nakao | Bloomberg | Getty Images

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Here are the biggest calls on Wall Street on Friday:

Morgan Stanley downgraded Tesla to underweight from equal weight

Morgan Stanley said in its downgrade of Tesla that it sees China and tech competition as risks for the stock.

"We highlight risks to Sino-US trade, near-term demand, capital needs and tech competition as the key bear vectors we think deserve more attention in the market. ... However, we believe the recent run-up in the share price (+132% YTD vs. the S&P 500 about -7% YTD) to over $1,000 may not reflect a number of important emerging risks, many of them long-term, that have the potential to impact fundamentals (growth and profitability) in a materially negative way and this drives our downgrade of the shares to UW."

Read more about this call here.

Goldman Sachs downgraded Tesla to neutral from buy

Goldman Sachs downgraded the stock on valuation among other things.

"We'd look to become more positive on Tesla stock again if we had more confidence in the near to intermediate term trajectory of fundamentals, or if valuation became more attractive. We maintain our view that the electric vehicle market offers attractive long-term growth, and we think Tesla will be able to sustain a leading position in EVs (and with solid margins)."

Read more about this call here.