The Dow Jones Industrial Average plunged another 156.06 points to end at 12,442.49 Thursday as Wall Street preps for Facebook’s much-anticipated debut on Friday.

The social networking giant priced its initial public offering at $38 a share, the high end of what will be the largest Internet IPO in history and value the company somewhere near $100 billion.

The Nasdaq tumbled 60.35 points to finish at 2,813.69 while the S&P 500 lost 20 points to close at 1,304.86.

Investors took note of the Labor Department’s report that claims for unemployment benefits were unchanged last week, checking in at a seasonally adjusted 370,000 claims rate. Most economists predicted claims would fall to around 365,000.

Also, the Conference Board said leading indicators declined 0.1% in April – the first drop in seven months.

Here are some more details from Thursday’s trading session:

Dow Jones Industrial Average:

  • Down five consecutive trading days and 11 of the last 12 sessions.
  • Longest streak of its kind since July 2002 (11 of 12 down days).
  • Down 412.55 points, or 3.21%, over the five-day period.
  • Largest one-day points and percentage decline since May 04, 2012.
  • An intraday high of 12611.42 occurred at 09:30:43 today, representing an increase of 12.87 points, or 0.10%.
  • An intraday low of 12440.52 occurred at 15:59:59 today, representing a decrease of 158.03 points, or 1.25%.
  • Six of the 30 component stocks rose, 24 fell.
  • Today's top five contributors to The Dow's movement and their point contribution: WMT (18.85), VZ (3.71), T (0.76), CVX (0.30), HPQ (0.23).
  • Today's bottom five laggards: CAT (-30.73), BA (-19.83), IBM (-13.93), MCD (-13.70), HD (-13.24).
  • Lowest closing value since January 13, 2012.
  • Down 12.16% from its record close of 14164.53 on October 09, 2007.
  • Up 90.05% from its 12-year closing low of 6547.05 on March 9, 2009.
  • Down 1.29% from 52 weeks ago.
  • Up 0.67% from its 2012 closing low of 12359.92 on January 06, 2012.
  • Down 6.30% from its 52-week high of 13279.32 on May 01, 2012.
  • Up 16.77% from its 52-week low of 10655.30 on October 03, 2011.
  • Month-to-date: down 5.84%.
  • Year-to-date: up 1.84%.
  • DJIA crossed zero 6 times during today's trading session.

Dow Jones U.S. Total Stock Market Index:

13520.92, down 234.26 points, or 1.70%, or approximately $114 billion in market capitalization

  • Down five consecutive trading days.
  • Down 578.61 points, or 4.10%, over the five-day period.
  • Down seven of the past eight trading days.
  • Largest one-day points and percentage decline since April 10, 2012.
  • Lowest closing value since January 17, 2012.
  • Down 14.13% (approximately $3.1 trillion in market cap), from its record close of 15745.39 on October 09, 2007.
  • Up 98.83% (approximately $8.1 trillion in market cap), from the 12 ½ year closing low of 6800.08 on March 9, 2009.
  • Down 3.89% from 52 weeks ago.
  • Up 2.38% from its 2012 closing low of 13206.64 on January 04, 2012.
  • Down 8.27% from its 52-week high of 14740.15 on April 02, 2012.
  • Up 19.66% from its 52-week low of 11299.07 on October 03, 2011.
  • Month-to-date: down 6.87%, or approximately $786 billion in market cap.
  • Year-to-date: up 3.85%, or approximately $935 billion in market cap.

Data courtesy of Dow Jones Indexes.