Stocks are opening lower on Wall Street as weakness in technology companies continues to drag on the market. The S&P 500 was off 0.3% in the early going Wednesday. The tech-heavy Nasdaq gave up 0.5% and the Dow Jones Industrial Average slipped 153 points, or 0.4%. Palo Alto Networks was a big loser. The network security company lost a quarter of its value after giving forecasts for future billings that came in well below what analysts were looking for. Amazon rose following an announcement that it would be added to the Dow. Walgreens Boots Alliance, which is leaving the Dow, fell.
