Amentum Holdings AMTM Edges Higher as Shares Test Key Resistance Near 2439 Fomento Economico Mexicano FMX Holds Steady Near 121 as Market Digests Mixed Signals AIM ImmunoTech AIM Surges 87 Potential Breakout or Resistance Test Rain Enhancement Technologies RAIN Surges 6 as Momentum Builds Near Resistance SAIC Surges 35 as Defense Contractor Gains Momentum