[Murphy uses a three-year chart of the XLV alongside the ratio of the XLV to the S&P 500 Index, providing a measure of health care's relative strength. When it rises, the implication is bearish for stocks.] Their relative strength ratio rises when the market is weak and falls when the market is strong, ... The fact that it's been rising for most of 2005 is a sign that money is moving into more defensive sectors in an aging bull market--another reason why health care is an attractive choice right now.
— John Murphy
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