AMD's stock price has surged by 90%, now trading at $458.79, following significant price target hikes from Bank of America and Daiwa, raising their targets to $500. This increase comes amid impressive revenue growth of 37.85% and strong positions in key technologies like Marvell and Xanadu Quantum Technologies. However, concerns linger over valuation metrics, as AMD's P/E ratio stands at a high 149.43, raising questions about sustainability.