Tell us what you think: What is spooking investors?

• Wall Street saw big losses last week, with all three major stock indexes dropping by at least 3 percent.
• The declines stateside came amid similar sell-offs observed in Europe and Asia.
• Markets have been hit by a wave of volatility in the month of October, amid concerns over factors such as rising interest rates, poorer-than-expected earnings and political uncertainty in Europe.

Global stock markets were highly volatile in October, with major indexes seeing large losses.

Wall Street tumbled last week. The S&P 500 saw losses of 3.9 percent, the Dow Jones Industrial Average