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

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.