<p><img src="https://images.cointelegraph.com/images/528_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjUtMDUvMDE5NmM5OTUtMjJiOS03OGFiLTg4MWYtNTZjYTVhMDJjNGQ0.jpg" alt="Arbitrum jumps 17% on speculation of partnership with Robinhood"></p><p>Speculation has been growing of a potential tie-up between Arbitrum and Robinhood Markets after an X post.</p>