The SPDR S&P Aerospace & Defense ETF (XAR) has surged to a new 52-week high above $281 this week, climbing 21% month-to-date and 20% year-to-date through January 2026. The rally, driven by robust sector momentum and a clean technical breakout, is outpacing broader indices like the S&P 500. XAR’s equal-weighted structure amplifies gains from top aerospace and defense holdings in missiles, aircraft, and space systems, attracting significant trader and institutional attention amid heightened geopolitical tensions.