In Investools put in a stock symbol and open up the chart
page. On the left is a menu. Find the Fundamentals heading and under it Trend. Click on Trend. The bottom item on the list of key numbers
It stands for Return on Invested Capital which means how much money did these guys make (as a percentage) on their equity and debt that they had to invest. A RULE #1 investor should want it 10% or better.