The subpar performance of FAANG stocks, which account for more than 10% of the S&P 500 weighting, will be a big drag on the market in the coming years (Kit Rees/Bloomberg)

Kit Rees / Bloomberg:
The subpar performance of FAANG stocks, which account for more than 10% of the S&P 500 weighting, will be a big drag on the market in the coming years  —  For some investors, this year's rout in high-flying technology stocks is more than a bear market: It's the end of an era for a handful …