Broadcom (AVGO -3.23%) stock closed out Tuesday's trading in the red. The tech company's share price fell 3.3% in a session that saw the S&P 500 battle back to be flat with yesterday's level and the Nasdaq Composite dip 0.4%.Stocks opened lower this morning as tech-sector valuation concerns weighed on major indexes, but there was a significant recovery in the afternoon following news that the U.S. and the Philippines have reached a trade agreement. In addition to some volatility for the broader market, Broa ...