Fastly Inc. (NYSE: FSLY): Citigroup resumed coverage with a Sell rating and slashed the target price to $25 from $40. The consensus target is $40.78. The shares ended trading on Tuesday at $26.53, down over 5% on the day.

Halliburton Co. (NYSE: HAL): Citigroup reiterated a Buy rating on the oilfield services leader and raised the target price to $33 from $30. Cowen reiterated an Outperform rating and moved its $33 target price to $35. Additional top firms across Wall Street made similar moves Tuesday, on the back of positive results and forward commentary from Schlumberger. The final trade for Tuesday was posted at $30.59, a 7% gain for the day.

KLA Corp. (NASDAQ: KLAC): KeyBanc Capital Markets started coverage with an Overweight rating and a $480 target price. The consensus price objective for the semiconductor capital equipment leader is $451.14. The shares closed trading Tuesday at $370.11, a retreat of over 5% for the day.

Moderna Inc. (NASDAQ: MRNA): Deutsche Bank upgraded the COVID-91 vaccine giant from Sell to Hold with a $175 target price. The consensus price objective is a much higher $284.26. The stock closed on Tuesday at $152.54. Shares were up 3% in the premarket.

Netflix Inc. (NASDAQ: NFLX): The new management team has not proven itself to the markets yet, which is reflected in the share price, says Zacks of its Bear of the Day. The stock has traded as high as $700.99 a share in the past year but closed most recently at $366.42.

New Relic Inc. (NYSE: NEWR): Morgan Stanley upgraded the stock to Overweight from Equal Weight and has a $150 target price. The consensus price objective is $124.91. The stock closed on Tuesday at $104.78.

Plains GP Holdings L.P. (NYSE: PAGP): Bernstein upgraded the stock from Market Perform to Outperform with a $14.50 price target. The consensus target is $13.96. The last trade on Tuesday was reported at $11.34.

Public Service Enterprise Group Inc. (NYSE: PEG): Evercore ISI lifted its In line rating to Outperform with a $71 price target. The consensus target is $71.75, and the stock closed on Tuesday at $64.72.

SJW Group (NYSE: SJW): Seaport Research Partners upgraded the shares from Neutral to Buy with a $78 price target. The consensus target is $76.83. The last trade Tuesday came in at $68.48 per share.

Southern Co. (NYSE: SO): Evercore ISI upgraded the utility heavyweight to In line from Underperform and has a $66 price target. The consensus target is $68.66. The final trade on Tuesday was reported at $67.25.

Splunk Inc. (NASDAQ: SPLK): Citigroup resumed coverage on the shares with a Neutral rating and nudged the $117 target price on the big data stock to $120. The consensus target is much higher at $164.28. Tuesday’s closing trade was at $116.25, which was down over 4% for the day.