this index used to work right, when most peoples weren't into technical analysis. Now that there are/is attention given to the pair between the Tick/Trin, and other components to the ARMS index, as well as the tremendous amount of scalpers profiting/losing on flat/neutral (including .04 gainers) trades, it virtually cancels out the signals given from this trending index.
It used to be that at/below .40 in the DJIA would signifiy tremendous buying soon to come, and at/below .28 meant that it was imminent. Conversely, readings above 1.00 and higher meant huge selling. Timothy Ord still does a lot of pivotal analysis on these indicators and their trending significance.
Factor in the huge market/technical-indicator changing buy/sell programs, and the ability to project a trend more than 5 minutes into the present is almost impossible.
So, what do we use to replace it with?