UnitedHealth stock rose 4% in premarket trading on Friday after UnitedHealth shares plunged nearly 11% on Thursday after a Wall Street Journal report that the U.S. Department of Justice had begun a criminal investigation into the company for potential Medicare fraud.

The reported probe adds to a string of recent setbacks for the healthcare conglomerate that has erased more than half, or over $300 billion, from its market value since November, when shares were trading at record highs.

Estee Lauder rose 5% in premarket trading on Friday.

Scion Asset Management, helmed by renowned investor Michael Burry, made significant moves in the first quarter of 2025 by doubling its stake in Estee Lauder. The latest 13F filing reveals that Scion now owns 200,000 shares of the cosmetics giant, with the position valued at $13.2 million.

Chinese autonomous vehicle stocks rose in premarket trading on Friday. Pony AI Inc up 5%, WeRide Inc. up 4%.

WeRide Inc., an autonomous driving technology company, on Friday said it launched fully driverless Robotaxi trial operations in Abu Dhabi.

The launch is the first of its kind in the Middle East. Beginning this quarter, a fleet of WeRide's Robotaxis will be operating on the public roads without safety drivers.

CoreWeave, Inc. rose 3% in premarket trading on Friday.

After popping this week, CoreWeave shares are up about 65% since the company’s IPO earlier this year. NVIDIA is a big beneficiary.

Nvidia owned nearly $900 million worth of shares in CoreWeave at the end of March, according to a filing from the chipmaker on Thursday. Assuming Nvidia hasn’t sold any shares since then, that stake is now worth close to $1.6 billion, as CoreWeave’s stock has surged in the past month.

Doximity, Inc. fell 22% in premarket trading on Friday after the telehealth software company dished out a disappointing outlook.

Doximity after Thursday's closing bell said revenue for the quarter ending June 30 was seen coming in between $139 and $140 million, while full-year revenue was expected at $619 million to $631 million.1 The high end of both ranges was below the current mean estimate as tracked by Visible Alpha.

The company's current-quarter and full-year guidance for adjusted EBITDA also disappointed investors.

Applied Materials fell 6% in premarket trading on Friday.

Applied Materials missed the Wall Street estimate for second-quarter revenue on Thursday, weighed by less-than-expected sales in the chipmaking equipment maker's biggest segment amid uncertainties around export curbs.

Revenue from the semiconductor systems segment, the largest contributor to the company's total revenue, was $5.26 billion, below analysts' estimate of $5.32 billion, according to data compiled by LSEG.

Applied Materials noted a slowdown in investment in ICAPS market — covering internet of things, communication, automotive, power and sensors — but said this has been partially offset by huge investments in advanced chips.