Friday's biggest movers: argenx sinks 11.8% and BrightSpring Health Services, Inc. Tangible Equity Unit rises 6.9%

Among US-listed companies worth at least $20 billion, the biggest moves in Friday's session (9 October) came from argenx, which fell 11.8%, and BrightSpring Health Services, Inc. Tangible Equity Unit, which rose 6.9%.

The decliners

argenx (ARGX) fell 11.8% to $818.63. It was its biggest one-day drop since 8 October, based on the past year of closes. The shares are down 1.9% this year and 22.1% below their 52-week closing high. Coverage since the move includes MT Newswires's headline “European Equities Traded in the US as American Depositary Receipts Rise in Friday Trading; Flat for Week”.

Coherent (COHR) fell 9.6% to $302.35. It was its biggest one-day drop since 14 September, based on the past year of closes. The shares are up 69.4% this year and 26.8% below their 52-week closing high. Coverage since the move includes TIKR's headline “AXT Stock Fell 10% in a Day Even as Analysts More Than Doubled Their 2027 Revenue Estimates. Here’s Where the Stock Could Go”.

Astera Labs (ALAB) fell 9.2% to $347.05. It was its biggest one-day drop since 14 September, based on the past year of closes. The shares are up 106% this year and 29.2% below their 52-week closing high. Coverage since the move includes Insider Monkey's headline “Jim Cramer Likes This Stock but Has a Problem With the Price”.

Tower Semiconductor (TSEM) fell 7.9% to $228.75. It was its biggest one-day drop since 14 September, based on the past year of closes. The shares are up 94.8% this year and 27.8% below their 52-week closing high.

The gainers

BrightSpring Health Services, Inc. Tangible Equity Unit (BTSGU) rose 6.9% to $210.90. It was its biggest one-day gain since 1 May, based on the past year of closes. The shares are up 67.1% this year and 12.4% below their 52-week closing high.

Chipotle Mexican Grill (CMG) rose 6.2% to $32.68. It was its biggest one-day gain since 8 October, based on the past year of closes. The shares are down 14.6% this year and 25.4% below their 52-week closing high. Coverage since the move includes Insider Monkey's headline “Starbucks (SBUX) and Chipotle (CMG): Could a Potential Takeover Backfire?”.

Accenture (ACN) rose 6.0% to $208.36. It was its biggest one-day gain since 8 October, based on the past year of closes. The shares are down 22.1% this year and 27.6% below their 52-week closing high.

Cognizant Technology Solutions (CTSH) rose 5.2% to $60.01. It was its biggest one-day gain since 1 October, based on the past year of closes. The shares are down 28.7% this year and 31.7% below their 52-week closing high. On 6 October the company filed an 8-K in which it signed a material agreement and took on a new debt obligation.

The megacaps

Of the 12 most-watched names we track, 6 closed higher. Palantir (PLTR) did best at +5.17%, and Supermicro (SMCI) worst at -2.14%.