The technology sector is the S&P 500's worst performer today, down more than 2%. Here are some of the tech names getting hit hardest:

-- Coherent, down 11%.

-- Hewlett Packard Enterprise, down 11%

-- Corning, down 11%

-- Teradyne, down 11%

-- Lumentum, down 8.5%

-- Dell Technologies, down 7.2%

-- Super Micro Computer, down 7.2%

-- Marvell Technology, down 7.1%

-- Skyworks Solutions, down 6.9%

-- Ciena, down 6.8%

-- Lam Research, down 6.7%

-- Intel, down 6.6%.