Mercury Systems (MRCY) Posts $289.8M Q4 Revenue, Shares Down 6.4%

Mercury Systems (NASDAQ: MRCY) reported fourth-quarter 2026 revenue of $289.8 million, exceeding analysts' expectations of $266.4 million. However, the company's adjusted earnings per share (EPS) of $0.37 fell short of the expected $0.38, declining from $0.47 in the same quarter last year. Additionally, Mercury's operating margin contracted to 5% from 8.6% year-over-year, indicating profitability concerns. As a result, shares are down 6.4% as investors react to reduced margins despite a growing revenue and backlog of $1.9 billion, up $540 million year-over-year, signaling apprehension about future profitability. This matters for ordinary investors as profitability and valuation metrics impact stock performance.