Most investing advice tells you what to buy. Barry Ritholtz would rather tell you what NOT to do. This week on Ticker Take, we sit down with Ritholtz, co-founder and chairman of Ritholtz Wealth Management and the author of How NOT To Invest. Barry walks us through 9 mistakes investors (including pros) often make — from trying to time the market to anchoring to what you paid. Plus, he walks us through the simple approach he uses to avoid making mistakes. As always, this is not financial advice.