I searched for the most auto correlated SPX data with the last 82 days and found the period coming from august 1980 Since 2 months it has perfectly shown the way We will test it today to see if SP500 makes a 3 - 5% move up in the next week http://groups.yahoo.com/group/futuresystem/ I am allways amazed to find charts like that and more amazed that they produce such terrific result
So you're running a time series analysis based solely on price. Mostly like differencing of degree 1, i.e. a pure momentum play? I am a bit confused ... you're extrapolating solely on ONE period? I.E. you're using 1980 data to predict 2003?? Data mining? Over-optimization?
well yes it seems so simple Now the period 1980 is quite similar than now stocks made a bear market rallye before plunging until august 1982 (start of the long bull market)
Good idea...but you're might be data mining. Anyhow is has been proven that market have weekly and monthly short term memory. .. part of your theory might be linked in that respect. Keep us posted on the result. Regards
I do not try to optimize I I just select the biggest correlation (this one is 97.5% !!!) based on past data since 1955. I have other correlations (around 95%)and they produce quite the same forecasts Memory is not only short term . Memory is a wave memory
My data analysis, while not exactly agreeing with yours, points to similar indicators. There are several similarities in recent data as compared with the time period you mention. The interest rate environment is a big wildcard and my analysis does not show that the US Economy is structurally as weak as it was in the early 80's .... so .... we may not see an exact replay of the late summer 80's conditions IMHO.
Fortuna, With due respect, I believe that you are entering the realm of spurious correlation. I would advise extreme caution if you plan to trade off of this finding. Regards, Thunderdog
Ok let's be clear I do not trade on statistics. I just want to know them. You might find nice correlations between SPX and a baseball cup results However this correlation tells something and is not unique: many other assets/commodities show simlar correlation. So even if I am not able intellectually to justify this it is somewhere an indicator in my global trading plan At least it shows that previous rallye have pushed higher before retreating
The forecast has been perfect today also SPX should climb 1 to 2% until end June before giving back its 3 days gain not an absurd scenario : mutual funds will push index for window dressing and sell evrything on tuesday To be followed sometimes statistics can be very excited