New UCLA Major

I am an incoming freshman at UCLA interested in finance as a career, and I was set on majoring in Business Economics until today. A friend told me that UCLA has created a new major called Financial Actuarial Mathematics. I am sorry to ask about such a specific topic, but would the new major give me significantly better opportunities than bus/econ? I have heard complaints about bus/econ being too theoretical, and the idea of learning specific skills such as quantitative finance appeals to me. I have read countless articles and blogs on how finance companies are increasingly targeting STEM majors. The obvious downside here would be the GPA hit. Would this switch be worth a slightly lower GPA, or should I focus on complementing bus/econ with heavy extracurricular activities? Thanks for any info and again, I realize that this is an incredibly pointed question.