The acquisition of Advanced Micro Instruments is a strategic move for Enpro that is likely to be viewed positively by investors. It represents a significant investment in expanding the company's portfolio and could lead to synergies, increased market share, and revenue growth. This news is expected to have a positive short-term impact on Enpro's stock price as the market often reacts favorably to expansion strategies that are expected to enhance a company's competitive edge and financial performance.