<div>GRAPHIC-Tech titans' market heft could signal broader stocks worry</div> <!-- no image --> <div>Outsized stock price gains for Apple Inc and Microsoft Corp mean the two tech titans' shares have attained unusual status: a combined weight of 10% of the benchmark S&P 500 index.<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=Y3AWwkM3r-o:dcGjgt5xnA4:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=Y3AWwkM3r-o:dcGjgt5xnA4:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=Y3AWwkM3r-o:dcGjgt5xnA4:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=Y3AWwkM3r-o:dcGjgt5xnA4:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=Y3AWwkM3r-o:dcGjgt5xnA4:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/Y3AWwkM3r-o" height="1" width="1" alt=""></div> Posted by Reuters