Welcome to my strategy, investor or trader. My goal is to try to answer this question "What is the US market doing?”, and act appropriately. I am talking about a trend-following methodology. This approach is not perfect, but it is rational because it respond to what prices are doing, not what we think they ought to be doing. To do this, I analyze and evaluate different things before making the decision, for example market trend indicators, economic indicators, sentiment surveys and seasonal patterns. About time duration I look at different time frames, small, medium and large, because each one depends on the other. In 90% of the time, I remain calm and follow the bigger trend off the larger time frame. There is also a second goal, which is getting the maximum return on investment with the lowest possible maximum drawdown. To do this, I try to avoid taking large positions most of the time. Of course these are goals only. No performance can be guaranteed. Generally, these are intermediate-term investments (weeks to months), but I also can do short-term trades. Good luck and good trading!