Although whispers of a bond bubble just won’t go away, investors appear to be undeterred right now. Lackluster economic news kept them in the safety of Treasuries, even as they dipped a toe into riskier waters. The prospect of more quantitative easing by the Federal Reserve, however, could have a negative impact. Be on the alert.

Direxion Daily China Bull 3x Shares (NYSEArca: CZM)

China’s economy continues to be a juggernaut. Even though the country’s government has taken steps to cool off some of that growth in order to prevent a disastrous overheating scenario, their growth rate is still something that has developed nations green with envy now. [How to Choose Among China ETFs.]

ProShares UltraPro QQQ (NYSEArca: TQQQ)

TQQQ is designed to give three times the daily performance of the NASDAQ-100 index, which gives exposure to some of the best-known names in technology, including Apple (NASDAQ: AAPL), Microsoft (NASDAQ: MSFT) and Google (NASDAQ: GOOG). Silicon Valley has staged something of a comeback in recent months, thanks to its willingness to diversify beyond information technology into other forms of technology – such as alternative energy.

Before you buy leveraged and inverse ETFs, read our special report to find out how they work, who they’re for and what the risks are.