Schwab chief investment strategist says the biggest mistake investors can make is a short-term approach that resembles gambling with the market

· *Liz Ann Sonders, Charles Schwab chief investment strategist, told Yahoo Finance TV the biggest mistake investors can make is taking a "get in, get out" short-term approach.*
· *Instead of trying to time the market, Sonders recommended investors rebalance their portfolios by trimming winners and adding to underperforming...