One of the indicators used by traders to determine S/R is the Moving Average. However, different traders use different MA periods. It seems that the most popular are the 20, 50, and 200, though, others use other numbers. To further complicate this, there is simple or exponential MA. I have read that the reason these numbers are significant is that many traders watch them and act accordingly when the S/R supposedly related to these numbers are violated. What period do you use, if you use one, and what type (EMA or SMA)? Why? Also, I would like to solicit your opinion on how you will manage a trade when the gap between the EMA and SMA price is wider. As an example, GENZ today, 1/8/01 is closed at 53.41. The stock's 200SMA is 52.85 and 200 EMA is 51.89. If you decide to buy tomorrow, which MA will you be watching for breach of support and why? Thanks for your opinion and comments.