XLK vs QQQ
XLY 主要是amzn, tsla, HD
XLC主要是google, meta
xle主要是xom, cvx,hal之类油,油服
XLRE vs VNQ 是REITs.
XLP consumer staples
XLU utility
XLV 医药健保
可以上 etf DOT com看成分股。当心行业性分险。
XLK vs QQQ
XLY 主要是amzn, tsla, HD
XLC主要是google, meta
xle主要是xom, cvx,hal之类油,油服
XLRE vs VNQ 是REITs.
XLP consumer staples
XLU utility
XLV 医药健保
可以上 etf DOT com看成分股。当心行业性分险。
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