The world's stock markets are so hot that even China's on a rally. Analysts say it's not over yet.

• Global stock markets are hitting record highs, driven by economic optimism and potential rate cuts.
• China's stock markets are rallying on attractive valuations and government stimulus measures.
• Investors are shifting funds to China as they seek profits from rising valuations in other markets.

The world's major stock markets are on a tear as indexes near and breach record highs.

The market is so hot that some analysts are even asking investors to rethink the adage "sell in May and go away" this year.