NVIDIA's commanding lead in artificial intelligence chip demand has propelled its market capitalization well ahead of rivals, with recent stock gains pushing it past $5.5 trillion and reinforcing trader consensus around a 96% implied probability it remains the largest company by the end of May. Strong quarterly guidance on GPU sales for large language model training and data center expansions has outpaced Alphabet's cloud growth and Apple's hardware cycle, widening the gap over the past month. The upcoming May 20 earnings release could further solidify this positioning if AI revenue beats expectations. A sharp post-earnings pullback or accelerated Alphabet momentum from regulatory wins might narrow the lead, though current dynamics make such reversals unlikely in the remaining weeks.