Quote from vertigo3:
Yesterday, NYSE new lows divided by Total issues traded were 59.8%
I believe this is unprecedented based on data since 1978 ( I stopped compiling this data in 2005 (when I quit my New York job).
The rule I had uncovered was simple, buy the close on any day when the NYSE new Lows divided by total issues was greater than 30%.
It had a perfect record until Sept 16, 2008, that is the only time it has not worked.
Whether yesterday's unprecedented 59.8% reading is an outlier, that could become predictive of some new rule of excessive readings is yet to be seen, but the simple fact of the matter is that 59.8% is greater than 30% and historically, odds greatly favor that the S&P 500 cash will close higher than the previous day's close.
Here is a list of the > 30% readings for the past year along with the price performance of the S&P 500 on the day following the extreme reading.
Xtreme.........NL/TotIss.........-%-..........NEXT DAY C[1]-C change
08/16/07......1132/3453......32.8%......SPX +2.46%
01/22/08......1114/3252......34.2%......SPX +2.14%
07/15/08......1304/3299......39.5%......SPX +2.51%
09/18/08......1108/3301......33.6%......SPX +4.03%
09/17/08......1238/3312......37.4%......SPX +4.33%
09/16/08......1292/3304......39.1%......SPX -4.17%<<<<dud>>>>>
09/29/08......1170/3289......35.6%......SPX +5.42%
10/06/08......1973/3300......59.8%......SPX ?
this 59.8% reading is truly off the charts. So huge. absolutely the biggest reading since 1978 (I can say this because I am virtually certain that there has never been a reading this high in the 1978-2005 data I based the study on (prior to 2005) and it is only recently that this bear market has been able to generate +30% readings.
Interesting, the history speaks for itself, with only one bad call. We'll see.