Investors interested in Medical stocks should always be looking to find the best-performing companies in the group. Acadia Pharmaceuticals (ACAD) is a stock that can certainly grab the attention of many investors, but do its recent returns compare favorably to the sector as a whole? A quick glance at the company's year-to-date performance in comparison to the rest of the Medical sector should help us answer this question.Acadia Pharmaceuticals is one of 914 individual stocks in the Medical sector. Collectiv ...