Shares of Silicon Valley's biggest companies fell sharply on Wednesday as the Dow Jones Industrial Average closed out its worst day yet of 2019.
The Dow dropped 800 points on Wednesday as investors fretted about falling bond yields, an ominous sign of a potential recession. Fears about a global decline have been fueled by a U.S.-China trade war and signs that Germany, another major world economy, may be on the cusp of a downturn.
The S&P 500 fell 2.9 percent as the yield on 10-year Treasuries…
