Stock market up, but there's underlying weakness By: CNBC.com News October 30, 2014 at 13:22 PM EDT Stocks are up, trading near session highs, despite weak market internals. Much of the Dow's gain is due to Visa and utilities are leading the S&P 500. Read More >> Related Stocks: Apache Corp Intel Corp Market Vectors Semiconductor ETF Micron Technology Microsoft Nabors Industries Natl Oilwell Varco S&P Oil & Gas Expl & Prod SPDR UTILITIES SEL Visa