The expansion of Marqeta's partnership with Uber Eats into additional markets is a positive development, likely to be viewed favorably by investors. It demonstrates the company's ability to scale its operations and strengthen its relationship with a major partner like Uber, potentially leading to increased revenues and a positive impact on its stock price in the short term.

Uber's decision to expand its partnership with Marqeta into more markets is likely to improve its Uber Eats service by leveraging Marqeta's advanced payment solutions. This enhancement in service offerings can lead to increased customer satisfaction and usage, which might positively influence Uber's stock price in the short term by reflecting growth in a key segment of its business.