Concerns of a Greek default sent the markets tumbling to a sharply lower close with the Dow plummeting 156 points to 12,442. Nasdaq plunged 60 points to 2813.

On the upside

Shares of social networking site FriendFinder Networks (FFN) surged ahead of Facebook's initial public offering tomorrow.

The Commerce Department announced 31% tariffs on Chinese solar panel imports which lifted shares of domestic solar energy firm SunPower (SPWR).

A Seeking Alpha contributor listed Barrick Gold (ABX) as one of three gold stocks with the potential to soar over the next two to three years.

On the downside

Profit taking sank shares of Herbalife (HLF) whose stock priced spiked yesterday after Greenlight Capital's David Einhorn did not recommend shorting the stock.

Shares of construction equipment company Terex (TEX) after Caterpillar (CAT) reported a slowdown in sales last month.

Yingli Green Energy (YGE) responded to the Commerce Department's 31% tariff on solar imports from China by affirming its commitment to serving the U. S. market and to creating a competitive marketplace.

In the broad market, declining issues outpaced advancers by a margin of more than 6 to 1 on the NYSE and by more than 4 to 1 on Nasdaq. The Russell 2000 which tracks small cap stocks plunged 17 points to 754.