When a prominent investment firm like Altimeter publicly announces the purchase of a significant amount of shares in a company, it often leads to increased investor confidence in that company. This can result in a short-term positive impact on the stock's price as the market reacts to the news. Given Alphabet Inc.'s standing in the market and the visibility of the announcement on a platform like CNBC, the potential for a positive impact on GOOGL's stock price in the short term is high.