The positive earnings report indicating better-than-expected Q3 sales is a strong driver of stock price appreciation in the short term. Investors typically react favorably to earnings that beat market expectations, which can lead to a surge in stock price as market sentiment improves. Given that the news directly pertains to GigaCloud Tech's financial performance, it is highly relevant and important to investors, and there is a high level of confidence in the short-term positive impact on the stock.