Investors looking for stocks in the Medical - Instruments sector might want to consider either Fresenius (FMS) or RxSight, Inc. (RXST) . But which of these two companies is the best option for those looking for undervalued stocks? Let's take a closer look.We have found that the best way to discover great value opportunities is to pair a strong Zacks Rank with a great grade in the Value category of our Style Scores system. The Zacks Rank favors stocks with strong earnings estimate revision trends, and our St ...