NVIDIA currently holds the top spot in global market capitalization at roughly $5.2 trillion to $5.7 trillion, while Alphabet sits comfortably in second at approximately $4.6 trillion to $4.9 trillion as of mid-May 2026, well ahead of Apple in third. With only two weeks remaining until the end of May, this positioning has driven overwhelming trader consensus on Polymarket, as reflected in the 94.9% implied probability for Alphabet to finish second. Limited trading time and the absence of major catalysts—such as unexpected earnings surprises or broad equity-market rotations—make a reversal unlikely, though a sharp rally in Apple shares or a steep decline in Alphabet could theoretically narrow the gap if sustained through month-end.