Erin Gibbs believes even in this volatile market, there are still some opportunities to be found in defensive stocks. She shares her top picks in healthcare and staples, such as Walmart (WMT) and McKesson (MCK), that have been holding up well despite the market downturn. Gibbs also discusses why she's taking a "sell into the rallies" approach and rotating out of riskier stocks. She also shares her thoughts on international markets, including why she's cautious on emerging markets and Europe.