 while the Dow did notch a weekly gain. This as investors digest more earnings reports and after a massive tech outage swept through the globe. A single update from cybersecurity software company CrowdStrike to a large group of companies caused outages for millions of users of Microsoft Windows devices worldwide. Shares of CrowdStrike tumbled 11%. The Dow down 377 points. The Nasdaq lower by 144. S&P 500 down 40.