The other "Fun with Fibbonacci" thread was too long and too long ago. So Friday 12/6 you had a move in es from 894 to 909 int the morning. So you draw a line from the most recent high or low on the chart to the lowest or highest trade. So the line is from 909 back to the low of 894. That makes the retracements 909=0% 905=23.6% 903=38.2% 900=61.8% 894=100% So the idea is you peg each of those numbers as support for the bull move, and if 61.8 is broken the whole move is suspect. You can trade them anyway you like. Try to buy the retracements or sell them short when they are broken or who knows what all. My personal favorite is, "After order comes disorder." Be interesting to see what happens if 900 is retested soon.