Doug Ramsey, chief investment officer at The Leuthold Group, discusses current market valuation risks and how his firm is responding to the market's mixed signals, including the inverted yield curve signal the market flashed months ago, increases in volatility and uncertainty and more. He also discusses research based on fishing charts and solar-lunar calendars showing that investors do better -- and should trade more -- at times with a full moon. Also on the show, John Boroff of Fidelity Investments discusses the firm's annual study on New Year's resolutions, Chuck answers an audience question about portfolio rebalancing, and David Trainer puts an equity fund with a history of topping the performance charts every few years into the Danger Zone.