Trader consensus on Polymarket positions Larry Page as the frontrunner at 48.5% implied probability to be the world's second-richest person on December 31, 2026, reflecting Alphabet's explosive stock rally following its late-April earnings report, which showcased surging cloud revenue and AI advancements, boosting Page's net worth past $300 billion for the first time—a $15 billion single-day gain. Sergey Brin trails closely at 24.5% due to his parallel Alphabet stake, while Jeff Bezos (32.5%) and Mark Zuckerberg (24%) remain viable amid Amazon and Meta's steady gains, though Tesla volatility keeps Elon Musk entrenched at #1. Recent billionaire index updates from Forbes and Bloomberg confirm Page's #2 spot, but year-end stock trajectories and economic shifts could alter this tight race before resolution.