MSCI Emerging Markets have even more concentrated single stock exposure than the S&amp;P 500. $BABA, Tencent &amp; Samsung are 17% of the index. $MSFT, $AAPL &amp; $AMZN are "only" 15% of the 500. Read why that matters here: https://t.co/J8SVCsMO6r $SPY $EEM https://t.co/cEKutk8hqq