Is Wall Street's selloff the start of a correction?

The violent selling in U.S. stocks during recent weeks has shocked investors, sending markets in Europe and Asia reeling.

U.S. stocks were pummeled Thursday, in a selloff that started in the momentum names - first biotechs and then techs on the Nasdaq. The biggest casualty was the Nasdaq itself, which saw its biggest one-day decline since November 2011.

The losses weren't just contained to tech and internet stocks; banks took a tumble, with the S&P financial sector down more than 2 percent.

Read MoreStocks could continue to lose ground

"It is shocking people, and I think that in real simple terms, big-sector rotation is taking place," said Frank Holmes, CEO & chief investment officer at U.S. Global Investors.

Is this the start of a market correction or are the losses just a temporary blip? Tell us what you think.

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