Stock Market Movers: Biggest Losers and Gainers on 27 October 2026

Worst Performers

10. CSGP: CoStar Group (CSGO) extends 3-day losing streak, drops 5.01% despite strong Q3 earnings as investors digest planned acquisition of Vexcel.

9. TRU: TransUnion (TRU) dips 5.28% on sell-the-news move after solid Q3 earnings.

8. INTR: Inter & Co Inc. (INTR) drops 5.34% on continued selloff in Brazilian stocks over surprise win of incumbent president.

7. PAYX: Paychex Inc. (PAYX) falls 5.57% on selloff after the cutoff date for dividends.

6. HSBC: HSBC Holdings (HSBC) down 5.7% as revenue growth disappoints.

5. WELL: Welltower Inc. (WELL) loses 5.77% on lower NAREIT FFO outlook.

4. VLO: Valero Energy (VLO) falls 9.24% on lower energy prices.

3. BA: The Boeing Company (BA) declines 10.69% on cautious growth outlook.

2. XYL: Xylem Inc. (XYL) loses 14.21% as Q3 earnings miss Wall Street consensus.

1. INOD: Innodata (INOD) nosedives 25.32% on reports of layoffs in India and the Philippines.

Highest Gainers

10. VSH: Vishay Intertechnology (VSH) jumps 10.93% on broader market optimism and bargain-hunting on AI technology stocks.

9. NBIS: Nebius Group (NBIS) climbs 11.22% on bargain-hunting following a 3-day decline.

8. NVTS: Navitas Semiconductor (NVTS) surges 11.31% on bargain-hunting of AI-linked stocks and portfolio positioning ahead of Q3 earnings release on Tuesday, November 3.

7. ABSI: Absci Corp. (ABSI) climbs 11.85% on portfolio positioning ahead of key business updates from looming Q3 earnings release and its participation in 2 upcoming conferences.

6. CLS: Celestica Inc. (CLS) soars 12.12% on bargain-hunting following a 3-day decline, as well as TD Cowen’s maintained buy recommendation and $430 price target.

5. MXL: MaxLinear Inc. (MXL) surges 12.34% on bargain-hunting in AI-related stocks, supported by strong earnings performance in Q3.

4. PNR: Pentair (PNR) jumps 12.8% on reaffirmed FY26 growth guidance and an EPS beat in Q3.

3. INFQ: Infleqtion Inc. (INFQ) soars 12.86% on bargain-hunting after a 3-day decline.

2. SOFI: SoFi Technologies (SOFI) rockets 13.42% higher on another beat-and-raise quarter. Profits soar 73% while net revenues jump 44%.

1. USAR: USA Rare Earth (USAR) climbs 16.72% on bargain-hunting after a 3-day decline.