Large-cap growth stocks including Microsoft Corp MSFT.O, Apple Inc AAPL.O, Amazon.com Inc AMZN.O and Tesla Inc TSLA.O fell between 2.6% and 5.2%, leading declines for the day. By Shreyashi Sanyal and Amruta Khandekar June 30 (Reuters) - U.S. stocks tumbled on Thursday, setting the S&P 500 for its worst first six months since 1970, on concerns that central banks determined to tame inflation will hamper global economic growth. Fears over slowing growth and surging prices have rippled through markets, with recession worries taking center stage as monetary policymakers across the world look to aggressively raise borrowing costs.