Stocks making the biggest moves midday: Instacart, Steelcase, Klaviyo and more

Check out the companies making headlines in midday trading.

Instacart — Instacart shares fell nearly 11% one day after going public on the Nasdaq. The grocery deliver company's stock debuted at $42 on Tuesday, 40% above its $30 offering price.

Steelcase — The furniture stock soared more than 19% after posting second-quarter earnings that topped Wall Street's expectations and offered strong full-year and third-quarter earnings guidance as more companies return to work. Excluding items, Steelcase posted earnings of 31 cents per share on revenue of $854.6 million.

Klaviyo — Klaviyo shares jumped more than 9% after the marketing automation company surged to $36.75 after its New York Stock Exchange initial public offering. The company priced 19.2 million shares late Tuesday at $30 per share, valuing the company at roughly $9 billion.

Bausch Health Companies — Bausch Health Companies surged 8% after Jefferies upgraded the drugmaker to a buy from hold, saying that a looming legal win could lead shares to more than double.

Stellantis — Shares rose about 1.7% after sales in Europe of brands such as Peugeot and Opel surged more than 6% in August. In the U.S., the Chrysler-Jeep parent warned that the United Auto Workers strike could result in more than 350 layoffs.

Pinterest — Shares added 3.1%, continuing their rally from Tuesday after management said it expects year-over-year revenue growth to accelerate after a slowdown the last two years. Citi and D.A. Davidson upgraded Pinterest to buy and increased their price targets on Wednesday to reflect the announcement.

General Mills — Shares of the Cheerios and Yoplait maker were flat after beating analyst expectations for its fiscal first-quarter earnings results. The firm's revenue came in at $4.9 billion, versus the $4.88 billion forecast by analysts polled by LSEG, formerly known as Refinitiv.

Coty — Shares popped 4.5% after the cosmetics maker raised its full-year outlook for 2024, due to strong momentum in beauty demand, particularly in its prestige fragrances category. Coty said it anticipates like-for-like sales to grow 8% and 10% next year, compared to prior guidance of 6% to 8%.

Zebra Technologies — Shares of Zebra Technologies shed more than 6% after Morgan Stanley downgraded the company to underweight from equal weight, citing expectations for a slower recovery in demand.

Textron — Textron shares jumped nearly 5% after siging an agreement with Berkshire Hathaway-owned NetJets. As part of the deal, NetJets may purchase up to 1,500 additional Cessna Citation business jets over the next 15 years.

Chewy — Shares of the e-commerce pet food company slid more than 5% after Oppenheimer downgraded it to perform from outperform. The investment firm said signs of weakness in the pet category signaled a more challenging environment for Chewy in the coming quarters.

On Holding — The shoe stock rose finished lower ever after Needham initiated coverage with a buy rating. The firm said On Holding is one of the fastest-growing stories in retail and at the early stage of its business cycle.

Lululemon — The athleisure clothing company rose nearly 2% after Needham initiated coverage with a buy rating, saying it expects double-digit top-line growth as accelerating technical innovation drives demand.

Azul — The Latin American airline rose almost 12% following an upgrade to buy from neutral at Goldman Sachs, which said Azul has an "undemanding valuation."

Build-A-Bear Workshop — The stuffed animal retailer jumped 4% after D.A. Davidson initiated coverage on the stock at a buy. The firm called Build-A-Bear an "iconic" company and an underappreciated small-cap growth idea.

First Citizens BancShares — Shares cadded 1.8% after JPMorgan initiated coverage of First Citizens BancShares at overweight, saying it's set to benefit from the assets it bought from failed Silicon Valley Bank.

— CNBC's Alex Harring, Hakyung Kim, Jesse Pound, Michelle Fox, Sarah Min, Yun Li and Lisa Kailai Han contributed reporting.