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To: Casaubon who wrote (8136)	3/13/1999 10:21:00 PM
From: Vitas	Respond to of 99985

Theoretical, as far as I know applies only to the Dow and their various averages. It was the only data on the Dow that Dow Jones provided, until a few years ago. It is a calc of the Dow that shows what the intraday high or low would be if all of the components reached their intraday extremes at the same time. Usually that does not happen, unless there is a breakout or breakdown that day. Now they provide "print" data, which is what the Dow is at any given moment, just like all of the other averages, like SPX, NYA, etc. Barron's lists the actual print Dow range for Friday as 9958.77 - 9861.92 and the theoretical as 10042.58 - 9779.78. Vitas

To: Casaubon who wrote (8136)	3/13/1999 10:34:00 PM
From: HairBall	Read Replies (2) \| Respond to of 99985

Casaubon: The following was a verbal from Dow Jones customer service a few months ago... Theorectical Low (IND.I) = Computation at the end of day, of the lows of each stock in an Index regardless of when they were reached intraday. The reverse is true for the Theoretical High. This is the one most of us download for end of day numbers and you have to wait awhile after the close to get these. Actual Low (DJI.I) = Real Time Low reached intraday by an Index. The reverse is true for the actual high. This is sometime referred to as the Print Low or High. Please Note: I used the Dow Jones Industrials as an example and the symbols above are the ones Dow Jones uses for its own data service! Regards, LG

To: Casaubon who wrote (8136)	3/14/1999 10:27:00 AM
From: Les H	Read Replies (1) \| Respond to of 99985

Theoretical computes the index low or high from the values of the component stocks' actual lows or highs, respectively. It's possible for the Dow to open lower or higher than the theoretical low or high for the day since component stocks may have delayed openings.

To: Casaubon who wrote (8136)	3/14/1999 6:19:00 PM
From: Smooth Drive	Respond to of 99985

Hello Casaubon, >>Could you possibly post an example of your theoratical P&F charts, with a corresponding actual chart.<< Tell you what I'll do Casaubon. You send me an e-mail, and I'll send you my Excel formated P&F blank charts. Run one of those off, go to MSFT Investor site at investor.msn.com and you create a 50 X 150 P&F chart from say the low in Oct of the DJIA. This is theoretical high and low data. When you complete that, post it here, and I'll post the same chart depicting actual high low data. I'm not attempting to be a smart ass Casaubon, but if your interested in P&F charting, here's a good way to prove or disprove a claim that I've made. As for an explanation of actual and theoretical data, it appears that the good folks of this thread have answered that. Take care, Eric