Q-ball stress stability criterion in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>U</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>1</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math> gauged scalar theories

We study the energy-momentum tensor of spherically symmetric $U(1)$ gauged Q-ball configurations in two-component Fridberg-Lee-Sirlin-Maxwell model, and one-component scalar model with a sextic potential. evaluate distributions corresponding shear forces pressure stability criteria for these solutions. present results numerical simulations both models, explicitly demonstrating that electrostatic repulsion may destabilize Q-balls. However, limiting case long ranged real component, Q-balls always remain stable.