Reaching 30 million clients is a significant achievement for Inter&Co and directly reflects on the company's ability to attract and retain customers. This milestone is likely to be viewed positively by investors as it demonstrates successful execution of the company's business strategy and could be a precursor to higher revenues and profitability. The news is highly relevant and important to INTR as it directly pertains to the company's performance and growth trajectory. The confidence in the analysis is high due to the clear positive nature of the milestone, although market conditions and other external factors could also influence the stock's performance.