U.S. stocks were higher, with the Dow Jones index gaining around 0.2% on Wednesday.

Shares of Arcadium Lithium plc ALTM rose sharply during Wednesday’s session after the company announced it will be acquired by Rio Tinto.

Rio Tinto and Arcadium Lithium entered into a definitive agreement under which Rio Tinto will acquire Arcadium in an all-cash transaction for $5.85 per share, valuing the company at approximately $6.7 billion.

Arcadium Lithium shares jumped 30.5% to $5.54 on Wednesday.

Here are some other big stocks recording gains in today’s session.

• MicroCloud Hologram Inc. HOLO shares surged 33.1% to $6.89.
• Helen of Troy Limited HELE gained 20.6% to $75.22 after the company reported better-than-expected second-quarter financial results.
• Astera Labs, Inc. ALAB shares jumped 15.7% to $61.31 after the company announced a new portfolio of fabric switches purpose-build for AI infrastructure at cloud-scale. Also, Morgan Stanley maintained an Overweight rating on the stock and raised its price target from $55 to $74.
• Standard Lithium Ltd. SLI surged 14.6% to $1.9788.
• IDT Corporation IDT gained 14.5% to $44.03.
• Luminar Technologies, Inc. LAZR climbed 10.7% to $0.9196.
• Sigma Lithium Corporation SGML rose 9.4% to $14.44.
• Biomea Fusion, Inc. BMEA surged 9.3% to $12.46. EF Hutton analyst Jason Kolbert initiated coverage on Biomea Fusion with a Buy rating and announced a price target of $128.
• Norwegian Cruise Line Holdings Ltd. NCLH gained 8.1% to $22.48. Citigroup analyst James Hardiman upgraded Norwegian Cruise Line from Neutral to Buy and raised the price target from $20 to $30.
• Array Technologies, Inc. ARRY rose 6.8% to $6.88.
• Super Micro Computer, Inc. SMCI climbed 5.4% to $47.80.
• GitLab Inc. GTLB gained 5.3% to $52.60. Morgan Stanley analyst Sanjit Singh initiated coverage on GitLab with an Overweight rating and announced a price target of $70.
• Chewy, Inc. CHWY rose 3.3% to $30.50. TD Cowen analyst Bill Kerr initiated coverage on Chewy with a Buy rating and announced a price target of $38.

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