🇺🇸 Just 42 stocks are materially contributing to the performance of the S&P 500 index, which has soared more than 12 per cent since the start of April - FT *This concentration of the market has some analysts worrying about the “fragility” of the rally. https://t.co/Mbz9W0ksFQ https://t.co/Visbz2wfaI #SP500 #MarketConcentration #StockMarketAnalysis #US
