U.S. stocks held steady near record highs on Friday as shares of GameStop tumbled, capping off a rollercoaster week for it and other meme stocks. The Dow Jones Industrial Average was up 0.1% Friday morning, while the S&P 500 and the Nasdaq Composite were flat. GameStop (GME) shares sank Friday after the company filed to sell up to 45 million additional shares, possibly a bid to cash in on this week’s meme stock rally. At the same time, the firm reported preliminary first-quarter results, indicating net sale ...