Polymarket traders price a 57.5% implied probability for Apple to hold second-largest market cap behind Microsoft by April 30 close, driven by its resilient $2.8 trillion valuation amid stable share price action over the past week, despite softer iPhone demand signals from China. Alphabet's 34.5% odds reflect recent gains from robust ad revenue and Google Cloud momentum, narrowing the gap to under $700 billion, bolstered by a 4% share rally since mid-April. Nvidia's lower 3.1% positioning stems from its $2.3 trillion cap stalling post-AI hype peak, facing a steep climb to overtake Apple absent fresh catalysts, while Tesla and others lag on post-earnings weakness and oil price headwinds for Saudi Aramco. Consensus anticipates minimal volatility into month-end absent surprises.