The release of positive monthly customer metrics is a strong indicator of company growth and potential revenue increases. This type of news typically generates investor optimism, leading to a short-term positive impact on the stock price. Given that the news is recent and directly pertains to Robinhood's performance, it is highly relevant and important to investors. The confidence level is high due to the direct correlation between customer metrics and stock performance, although market conditions and other external factors could affect the stock's movement.