Stock Market Movers: Biggest Losers and Gainers on 23 October 2026

Biggest Losers

10. NWL: Newell Brands (NWL) falls 6.46% as UBS reiterates neutral stance on concerns about sustainability of improvements.

9. INFY: Infosys Ltd. (INFY) sheds 6.58% after cutting revenue growth forecast by 1-2%.

8. TMUS: T-Mobile US (TMUS) falls 7.71% on competition concerns with SpaceX, as the latter eyes installing 80K cell sites across the US.

7. T: AT&T (T) drops 7.96% on Starlink competition fears, as SpaceX eyes 80K cell sites across the US.

6. FLG: Flagstar Bank (FLG) sheds 9.27% on revenue miss.

5. CRDO: Credo Technology Group (CRDO) declines 9.51% as MaxLinear CEO acknowledges CRDO’s huge market share in the AEC cable market, but argues that the industry is now diversifying amid rapidly growing technology, making other players more competitive.

4. SLM: SLM Corp. (SLM) falls 10.78% after cutting full-year growth outlook amid higher charge-offs.

3. BE: Bloom Energy (BE) declines 11.24% on a sell-the-news move after strong earnings.

2. TNGX: Tango Therapeutics (TNGX) nosedives 16.43% on profit-taking following 4-day gain.

1. LKQ: LKQ Corp. (LKQ) slashes 22.47% on weak Q3 preliminary results and leadership change.

Highest Gainers

10. TTMI: TTM Technologies (TTMI) recovers 8.42% on sell-the-news move after strong Q3 earnings and Q4 growth guidance.

9. SAIL: Sailpoint Inc. (SAIL) extends rally for 5th day, jumps 8.62% on overall cybersecurity rally as US security agencies warn of critical vulnerabilities in PHP, which powers much of the internet.

8. FSLY: Fastly Inc. (FSLY) climbs 8.73% on cybersecurity rally.

7. CCI: Crown Castle Inc. (CCI) surges 9.06% as SpaceX hints at discussing with one major cellular infra company for its ambition to secure at least 80K cell sites in the US.

6. CART: Maplebear Inc. (CART) jumps 9.21% on reports the company is exploring a sale with preliminary discussions already underway with Uber or DoorDash.

5. VG: Venture Global (VG) climbs 9.29% on long-term supply deal with QatarEnergy.

4. NTSK: Netskope (NTSK) extends climb to 5th day, up 9.37% as cybersecurity stocks rally.

3. GMAB: Genmab AS (GMAB) climbs on 5th day, up 9.48% on positive phase 3 ovarian cancer trial results.

2. SID: Companhia Siderúrgica Nacional (SID) surges 13.46% amid reports it is nearing an agreement to sell its cement business as negotiations continue.

1. UWMC: UWM Holdings (UWMC) soars 26.09% on targeted $80B mortgage servicing rights to slash debt.