Stockmine - I dug this up. I just copy/pasted and take no responsibility for accuracy. URL/Source below
From August 2011
******************* We just completed the 7th consecutive down day for the S&P 500 index. A colleague of mine sends me these stats*, which I found pretty amazing:
Since 1988, there have only been 4 times where the SPX was down for at least 7 days in a row. 3 of those streaks were extended into an 8th day, and none lasted for 9 days.
On the flip side, since 1988 there have been 20 streaks of at least 7 days in a row to the upside.
Since 1998, there have only been 2 streaks of at least 7 consecutive down days, with one of those lasting an 8th day. *******************