Does it offer negative balance protection?

https://www.buxmarkets.com/en    

BUX Markets is a Trading Name of BUX Financial Services Limited, a company authorized and regulated by the United Kingdom Financial Conduct Authority (FCA) with company reference number 184333.

As for the question you asked, we recommend that you ask the official customer services directly for a more accurate answer. For more details on this broker, please check our full BUX Markets review.