Charts: Comparisons with the last two corrections on this rally. (Part I of II) Note: The PPOs on each chart show how far, in percentage terms, each index is above or below its own 20, 13, and 8 day exponential moving averages. <img src=http://stockcharts.com/def/servlet/SharpChartv05.ServletDriver?chart=%24COMPQ%2Cuu%5Be%2Ca%5Ddaclyyay%5Bdb%5D%5Bpc5%21c8%21c13%21d20%2C2%5D%5Bvc60%5D%5Bile1%2C20%2C1%21le1%2C13%2C1%21le1%2C8%2C1%5D%5BJ11815545%2CY%5D> <img src=http://stockcharts.com/def/servlet/SharpChartv05.ServletDriver?chart=%24NDX%2Cuu%5Be%2Ca%5Ddaclyyay%5Bdb%5D%5Bpc5%21c8%21c13%21d20%2C2%5D%5Bvc60%5D%5Bile1%2C20%2C1%21le1%2C13%2C1%21le1%2C8%2C1%5D%5BJ10353338%2CY%5D> <img src=http://stockcharts.com/def/servlet/SharpChartv05.ServletDriver?chart=%24SPX%2Cuu%5Be%2Ca%5Ddaclyyay%5Bdb%5D%5Bpc5%21c8%21c13%21d20%2C2%5D%5Bvc60%5D%5Bile1%2C20%2C1%21le1%2C13%2C1%21le1%2C8%2C1%5D%5BJ10353339%2CY%5D> <img src=http://stockcharts.com/def/servlet/SharpChartv05.ServletDriver?chart=%24INDU%2Cuu%5Be%2Ca%5Ddaclyyay%5Bdb%5D%5Bpc5%21c8%21c13%21d20%2C2%5D%5Bvc60%5D%5Bile1%2C20%2C1%21le1%2C13%2C1%21le1%2C8%2C1%5D%5BJ10353340%2CY%5D>