Tech stocks were mixed Wednesday afternoon, with the State Street Technology Select Sector SPDR ETF (XLK) falling 1.4% and the State Street SPDR S&P Semiconductor ETF (XSD) adding 1%.

The Philadelphia Semiconductor index advanced 0.9%.

In corporate news, Alphabet (GOOG, GOOGL) increased the size of its equity capital raise to $84.75 billion from the previously announced $80 billion, according to a regulatory filing Tuesday. The offering includes a pledge by Berkshire Hathaway (BRK.A, BRK.B) to invest $10 billion in the tech giant in a private placement, the filing said. Alphabet's Class A and Class C shares were each down 0.2%.