Market Movers: Highest Losers and Gainers on 29 October 2026

5. FTNT: Fortinet (FTNT) declines 20% on sell-the-news move after strong earnings, mirroring tech selloff.

4. SFM: Sprouts Farmers Market (SFM) loses 22.58% on Q3 earnings miss, lower Q4 sales outlook.

3. ALNY: Alnylam Pharmaceuticals (ALNY) loses 25.13% on sell-the-news move after strong Q3 earnings.