Allegion Plc's shares dropped more than 9% following the release of its fourth-quarter earnings, which showed an adjusted EPS of $1.94, falling short of analysts' expectations. While the company reported a strong revenue of $1.03 billion, a 9.3% increase from the previous year, this positive growth was overshadowed by the earnings miss. The company provided a cautious outlook for 2026, projecting adjusted EPS of $8.70 to $8.90, which is below previous analyst estimates, raising concerns about future performance.