Investors with an interest in Medical - Instruments stocks have likely encountered both Integer (ITGR) and Penumbra (PEN) . But which of these two companies is the best option for those looking for undervalued stocks? Let's take a closer look. Everyone has their own methods for finding great value opportunities, but our model includes pairing an impressive grade in the Value category of our Style Scores system with a strong Zacks Rank. The Zacks Rank favors stocks with strong earnings estimate revision tren ...