Our project utilizes Voltage-Controlled Magnetic Anisotropy Magnetic Tunnel Junctions (VCMA-MTJs) technology to create a Time-and-Energy-Efficient Ising computer for portfolio optimization and risk management. The Ising model is adept at solving complex optimization problems by mapping multifaceted relationships within a magnetic lattice. By applying this model, our Ising computer will provide faster and more reliable solutions for portfolio optimization and risk management than conventional computing methods. The unique advantage of VCMA-MTJ technology is its ultra-low energy consumption and rapid operation speed. By controlling magnetic states with voltage, we can minimize the energy input required for the Ising system to perform computations. Our project promises to deliver a transformative tool for financial analysts and investors, enabling them to make more informed decisions by evaluating risk and reward scenarios with unprecedented precision and speed.