John Arnold

A study shows sports betting worsens financial health by reducing savings and increasing debt, with bets crowding out investments in housing and retirement. Betting platforms like Kalshi and Polymarket saw trading volumes surge from $2 billion to $50 billion between early 2025 and June, correlating with rising consumer-loan delinquencies and decreased stock investment. Billionaire John Arnold has called for political action to address the issue.

Billionaire John Arnold and his wife have donated over $2.3 billion to causes like criminal justice and education. Arnold Ventures, their foundation, is now funding $2.6 million in research grants to 12 universities and think tanks to study the health and societal impacts of sports betting, focusing on financial well-being, mental health, and policy solutions. The research excludes prediction markets due to limited data access.

John Arnold is investing $2.6 million through Arnold Ventures to fund university research examining the potential harms of online sports betting.

Tech billionaires like Jeff Bezos and Elon Musk are questioning the value of philanthropy compared to their for-profit companies, marking a shift from earlier charitable pledges. This raises questions about how the new generation of AI-age billionaires will be remembered compared to historical figures like Andrew Carnegie who endowed major institutions. Some experts predict a return to 19th-century style philanthropy focused on broader societal flourishing rather than metrics-driven giving.