What a difference a day makes. After the Dow Jones Industrial Average (INDEX: ^DJI) jumped 125 points, or 1%, yesterday on positive news out of Greece and Europe, the Dow dropped more than 160 points today mainly because of -- wait for it -- negative news out of Europe. The bipolar market continues to move on a whim as investors digest every nugget of information out of the troubled continent.

Investors were concerned today with the health of Spanish banks -- in particular the country's third largest lender, Bankia, which is in need of a bailout. There were also renewed concerns about Greece's ability to remain in the eurozone. At home, investors were disappointed with a report that showed pending U.S. home sales declined.

Here's how all three of the major U.S. indices fared on the day:

Index

Change

Ending Value

Dow Jones Industrial Average -160.83 [-1.28%] 12,419.86
Nasdaq -33.63 [-1.17%] 2,837.36
S&P 500 -19.10 [-1.43%] 1,313.31

As for individual stocks, a whopping 29 of the 30 Dow components finished in the red. Alcoa (NYSE: AA) was the biggest loser today, dropping 3.5%, while construction-equipment giant Caterpillar (NYSE: CAT) fell 2.5%. The companies are two of the most exposed to the global economy, so today's negative news from Europe was certainly a big catalyst pulling the stocks down. Caterpillar is also dealing with a strike at its Joliet, Ill., plant. The monthlong strike is showing no signs of abating as workers voted today to reject the company's latest contract offer.

Bank of America (NYSE: BAC) was another loser today, dropping 3.1%. The company was dragged down by Europe's bank worries, though Bank of America is still the year's best Dow performer, up nearly 30% year to date.

Outside the Dow, Facebook (NYSE: FB) fell again, dropping 2.3% on the day. Options trading began for Facebook's stock yesterday, and most investors are still betting that the company's stock slide will continue. Facebook investors also continue to digest reports that the company is looking into a potential takeover of Norway-based Opera Software, which could help Facebook monetize its huge mobile traffic.

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Brendan Byrnes owns shares of Caterpillar. The Motley Fool has a disclosure policy. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. Try any of our Foolish newsletter services free for 30 days.