adam parker, chief u.s. equity strategist at morgan stanley, is back with us. adam, if you're playing the fence, what makes a defensive strategy for investment in this kind of climate with this volatility? >> it really is relative estimate achieveability. you want to own stocks in sectors where the estimates are more achievable. where they have less downside should the economy slow. so we're recommending areas like health care, utilities and energy, where we think the estimates are more achievable in the second half of the year than the broader market. we're recommending investors avoid or underweight sectors like consumer discretionary and industrials where the estimates, in our mind, accelerate too much and are therefore unachievable. >> tom: you're looking for areas that do have kind of a lower hurdle so they can get over. you mentioned health care. let's pull this one out. we're using exchange-traded funds as proxies for the sector. it's come off its most recent highs -- the entire market has, this week -- but this has been very good performance over the pas