It’s been a little while since I’ve updated my thoughts on Materion (NYSE: MTRN ), and the last couple of years have been a little more interesting than I’d expected. While I was concerned about valuation whenAnalyst’s Disclosure: I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this article myself, and it expresses my own opinions. I am not receiving compensation for it (other than from ...