It hasn’t gone unnoticed that the market’s strong performance this year has been led by the mega-caps, with the tech giants largely responsible for the surge in the S&P 500 and NASDAQ. This has led many commentators to issue warnings about the lack of market breadth driving the gains, with many believing it indicates that the market is a lot more fragile than it looks. However, that is not the case at all, according to billionaire Ken Fisher, who thinks that “bad breadth” is a bullish indicator.