Dow and S&P 500 Plunge on Strong GDP Growth

Although we don't believe in timing the market or panicking over daily movements, we do like to keep an eye on market changes -- just in case they're material to our investing thesis.

The Dow Jones Industrial Average and the S&P 500 steadily fell today to both finish down roughly 1%. The drop came after GDP grew faster than economists had predicted, raising investors' fear that the Federal Reserve would taper sooner than previously expected. The Dow closed down 153 points, to 15,594. The S&P 500 finished down 23, points to 1,747.

The Dow's 0.97% loss means today was the 11th worst day this year for Dow stocks on the basis of one-day performance. "Plunge" is a bit of a strong word, but it makes sense given that today steep drop. It  also goes to show how few large down days there have been this year. Year to date, the Dow is up 19%, and the S&P 500 is up 22.5%.

^DJI Chart

^DJI data by YCharts

Today, 28 of 30 Dow stocks were in the red, while the S&P 500 was led down by the services and basic materials sectors, both of which fell 1.8%.

Losses were across the board as investors sold off stocks following the better-than-expected Gross Domestic Product report. The Bureau of Economic Analysis reported today its advance estimate of third-quarter GDP for the U.S. The U.S. economy grew at an estimated 2.8% annualized rate, better than the second quarter's 2.5% growth, and better than analyst expectations of a drop to 2.3% growth.

Better-than-expected economic growth is a downer for the markets, as it means that the Federal Reserve is more likely to end its asset purchases sooner. One of the main drivers of the market this year has been the Federal Reserve's long term asset purchase program, through which the Fed buys $85 billion worth of long-term assets each month.

The goal of the program is to boost asset prices, and create a wealth effect that will spur on the economy and create a self-reinforcing growth cycle. The Federal Reserve only has so many tools at its fingertips to spur on the economy, and asset purchases seem to be helping Wall Street a lot more than it's helping main street. A real stimulus to boost the economy would get cash into consumers' pockets, but it would take action from Congress to make that a reality.

The Fed's program has not really been effective, as growth hasn't been self-sustaining. Mortgage rates spiked at the first hint of the Fed slowing its purchases in June. After the June meeting, Bernanke said the Fed could begin tapering its asset purchases at the end of the year, as it saw the economy strengthening. While many thought those plans were put on hold by the government shutdown, the far-better-than-expected growth means tapering could, in fact, happen soon. While the Federal Reserve must still contend with low inflation, stronger growth makes the Fed all the more likely to begin tapering its purchases.

The sector that was the least changed today was the health-care sector. The sector generally moves independently of the market and, especially with the start of Obamacare, is far more dependent on government regulation than anything else.

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The article Dow and S&P 500 Plunge on Strong GDP Growth originally appeared on

Dan Dzombakcan be found on Twitter @DanDzombakor on his Facebook page,DanDzombak. He has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

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