NEW YORK—Kyle Ash snapped up $2,615 worth of Twitter Inc shares as soon as he heard that Elon Musk had become the social media company’s largest shareholder. The 25-year-old retail worker from Reading, Britain bought into Twitter on Monday after shares surged 27% on news of Musk’s investment in the San Francisco-based company. Ash paid $49 per share on average, versus the $44 price target from analysts covering Twitter’s stock. Bullish bets that go against Wall Street’s conventional wisdom have been a hallmark of the “meme” stock trading frenzy that has swept many individual investors in the past 15 months. Ash, who has also invested in meme stocks such as video game retailer GameStop Corp and movie-theater operator AMC Entertainment Holdings, said he hoped celebrity billionaire Musk would bring the same hype to Twitter’s stock. “Everything Elon touches creates a wave in the beginning. I have faith in people’s faith …