On March 18, prediction markets showed a newly created address invested $57,500 betting on a U.S. invasion of Cuba, causing significant fluctuations in the relevant probability. Trump stated he might take over Cuba amid U.S.-Cuba tensions and said he is negotiating with Cuba. The U.S. cut financial support to Cuba, raising public concerns about possible military action.

Stripe and Paradigm jointly developed new public chain Tempo is expected to launch mainnet by the end of March, adopting a dual-track model focusing on payments and DeFi. The mainnet will not issue tokens, and the team will wait for a better market environment to design the token economic model.

Polymarket prediction market shows that an account has placed a $90,000 bet on the Iranian regime collapsing before April 30 and June 30, with current odds at 23.5¢. Internal factional divisions are evident in Iran, with Supreme Leader Khamenei absent from public appearance, emphasizing a hardline stance on foreign policy.