This is the No. 1 mistake investors are making now — here’s how to avoid it By: MarketWatch February 26, 2020 at 09:50 AM EST Some investors let percentage declines in stocks lead them. It’s better to follow other indicators. Read More >> Related Stocks: Adv Micro Devices Alpha Pro Tech Dow Industrials SPDR Facebook Gilead Sciences Lakeland Inds Inc Las Vegas Sands Micron Technology Moderna Inc NVIDIA Corp Nasdaq ETF Royal Caribbean Cruises Ltd SPDR S&P 500 ETF Trust Tesla, Inc. Trip.com Group Ltd ADR United Airlines Holdings Inc Virgin Galactic Holdings Inc Wynn Resorts