NVIDIA's commanding lead in market-implied odds for the largest company by end of May stems from its record market capitalization near $5.5 trillion, fueled by surging demand for its artificial intelligence GPUs and data center systems that power large language model training and inference. Recent momentum, including new highs and a widening gap over Alphabet at roughly $4.8 trillion and Apple near $4.3 trillion, reflects NVIDIA's entrenched position in the AI hardware ecosystem with few near-term competitors able to close the distance in the remaining two weeks. Traders see limited catalysts for reversal absent a sharp earnings shortfall, unexpected regulatory hurdles on AI exports, or broader market correction that could compress valuations across tech.