One of the reason many people missed out on the market rally so far or got in late is because of lack of market timing model. Many people were very bearish and when the market turned they never believed in the rally. If you use a market timing model you can get in to such explosive moves.
Market Monitoris my market timing model. It uses market breadth for market timing. Market Timing models try to identify periods when it is favorable and unfavorable to invest in the market. The objective is to be aggressive during favorable periods and to be defensive and less invested during unfavorable period. It signaled a buy on 16th March, 5 days after the turn started. That was the signal to be aggressive and that helped catch many explosive moves in last month and half.
Different people use different approach to build market timing models. I have studied various timing systems over the years and they can be broadly classified as:
Monetary indicators: based on interest rates, bond yield, money supply , consumer debt, business debt, savings etc
Economic indicators: gdp growth rate, industrial production, inventory levels, retail sales, durables sales, new home building and so on.