Stock Market Movers: 10 Biggest Gainers and Losers – 20 October 2026

2. TSEM: Tower Semiconductor (TSEM) declines 8.25% on broader industry pessimism.

1. SE: Sea Ltd. (SE) loses 9.09% on broader market pessimism, chief commercial officer’s disposition of stake.

Top Performers

10. BB: BlackBerry Ltd. (BB) jumps 8.7% on strong QNX backlog.

9. RUN: Sunrun Inc. (RUN) climbs 9.87% on bargain-hunting after touching 52-week low in intraday trading.