After a week that started with a broad-based equities free fall -- only to be interrupted by massive gains and then equally gigantic losses in successive trading days -- ended on an upbeat note with the Dow Jones Industrial average adding 125 points, or 1.1%, to close at 11,269.02.

The Nasdaq and S&P 500 followed suit, gaining a modest 15 points and 6 points, respectively.

All this tumult, coming in the wake of the S&P downgrade of the country's foreign debt rating, made for exciting -- maybe too exciting -- theater and generated a spreadsheet worth of data points worth considering heading into next week.

Every day this week, the Dow made three-figure moves in one direction or the other.

And, believe it or not, the Dow is up almost 10% from exactly one year ago today.

Here's a closer look at just how crazy this past week's trading was:

Dow Jones Industrial average:

-- Down 175.59 points this week, or 1.53%, to 11269.02

-- Down three consecutive weeks and four of the last five.

-- Down 11.14, over the three-week trading period.

-- Today: DJIA, up 125.71 points, or 1.13%.

-- Up two consecutive trading days and three of the last four sessions.

-- First two-day gain in a month, since the two-day period ended July 7, 2011.

-- Up 549.08 points, or 5.12%, over the two-day trading period.

-- Largest two-day percentage gain since March 24, 2009.

-- Largest two-day points gain since December 08, 2008.

-- Had triple-digit move everyday this week (five straight days); the last time The Dow had triple-digit moves in as many days was the five-day period ended January 22, 2010.

-- Twenty-one of the 30 component stocks rose, nine fell.

-- Friday's top contributors to The Dow's movement and their point contribution: BA (21.95), UTX (20.51), CAT (19.37), CVX (13.55), IBM (11.13).

-- Friday's laggards: JPM (-5.90), VZ (-2.42), TRV (-1.97), T (-1.67), AXP (-1.36).

-- An intraday high of 11346.67 occurred at 11:55:34 Friday, representing an increase of 203.36 points, or 1.82%.

-- An intraday low of 11142.18 occurred at 09:30:06 Friday, representing a decrease of 1.13 points, or 0.01%.

--  Down 2895.51 points, or 20.44%, from its record close of 14164.53 on October 9, 2007.

-- Up 9.37% from 52 weeks ago.

-- Up 72.12% from its 12-year closing low of 6547.05 on March 9, 2009.

-- Down 12.03% from its 2011 closing high of 12810.54 on April 29.

-- Month-to-date: down 7.20%.

-- Year-to-date: down 2.66%.

Dow Jones U.S. Total Stock Market Index

-- Dow Jones U.S. Total Stock Market Index, 12259.97 (prelim)*, down 195.87 points this week, or 1.57%.

-- Down three consecutive weeks and four of the last five.

-- Down 13.03%, over three-week period.

-- Friday: Dow Jones U.S. Total Stock Market Index, up 62.62 points, or 0.51%, or approximately $73.0 billion in market capitalization.

-- Up two consecutive trading days and three of the last four sessions.

-- Up 615.48 points, or 5.29%, over the two-day trading session.

-- Largest two-day percentage gain since April 09, 2009.

-- Largest two-day points gain since December 08, 2008.

-- Down 3485.42 points, or 22.14% (approximately $4.7 trillion in market cap), from its record close of 15745.39 on October 9, 2007.

-- Up 80.29% (approximately $6.5 trillion in market cap), from the 12-½ year closing of 6800.08 on March 9, 2009.

-- Up 10.52% over the past 52 weeks.

-- Down 14.32% from its 2011 closing high of 14308.37 on April 29.

-- Month-to-date: down 9.31%.

-- Year-to-date: down 6.64%, or approximately $1.0 trillion in market cap.

Data courtesy of Dow Jones Indexes