California is preparing for a vote on Proposition 40, a proposed wealth tax targeting billionaires, scheduled for November 3, 2026. The initiative has drawn significant attention from high-profile figures, including Mark Zuckerberg, who has reportedly planned to sell shares to cover potential tax liabilities.

The proposal faces opposition from individuals such as Palmer Luckey. Currently, the top 1% of earners in California contribute nearly half of the state's total income tax revenue. Market participants are closely monitoring polling data, potential endorsements from officials like Governor Newsom, and any legislative actions that could alter the measure.

The outcome of the vote is expected to influence market perceptions and pricing. Prediction markets are already tracking the political landscape surrounding the initiative, alongside other major events such as election margins and shifts in international leadership.