By the Numbers

Robert Hum

Robert Hum
Producer, CNBC.com

Robert Hum is the Markets Producer at CNBC.

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  • Since the Lehman bankruptcy on September 15, the S&P 500 has lost one third of its value. During this slide, which has spanned 48 trading sessions, the S&P has fallen on two-thirds of the days.

  • With ongoing earnings and capital concerns, financials have failed to muster up any sustained rally, as they continue to hit lower lows this week.

  • The Dow Industrials has shown some significant moves each day over the past two weeks. In fact, yesterday the Dow was up 10% from its session low to session high.

  • There has been no let up on volatility this week. In the early afternoon, the Dow is trading at its session low today, down over 500 points.

  • Certainly it has been a rough year for the markets. Exactly one year ago today, the Dow Industrials and S&P 500 both closed at record highs. Since that day, the Dow has plummeted nearly 5,000 points, and the S&P has dropped a more impressive 600 points.

  • Starting the week off on a sour note is nothing new for the markets. Falling over 500 points today, the Dow continues a trend it started three months ago. Since July, the Dow has posted gains on only 2 of the last 13 Mondays.

  • After taking into account Monday’s plunge, the Dow Industrials is now down 27% from its October 2007 high. The S&P 500 and the Nasdaq Composite have fared a bit worse, declining 29% and 31% from their respective highs last October. Take a look at how some of the other major U.S. indices and sectors have performed since their 52-week high (including Monday’s fall)It's been a rough twelve months.  The Dow and S&P are looking to have their 4th straight quarter of declines, something not seen in years.  Here is a preview of the quarter end stats and the winners and losers to date.

  • It's been a rough twelve months.  The Dow and S&P are looking to have their 4th straight quarter of declines, something not seen in years.  Here is a preview of the quarter end stats and the winners and losers to date.

  • While Kraft Foods will be joining the Dow Industrials on Monday, in a way, it's not the first time it has been a part of the Dow.

  • Despite all of the developments this week, with a current market cap of $5.5 billion, AIG remains bigger than just over a quarter of its fellow S&P 500 components.