Key PointsCerebras beat analysts' consensus revenue estimates in the first quarter.But its shares still fell as investors processed the news that profit margins will decline this year.Some AI chip stocks are coming under pressure, and more volatility could be ahead.10 stocks we like better than Cerebras Systems › After a blockbuster IPO just a few weeks ago, Cerebras (NASDAQ: CBRS) stock has nosedived recently. The company reported its first-qua…