The Dax travelled from 5400 to 7200 ,give or take.These are Gann circle numbers (natural supp/res) and the range,1800 is also a Gann circle number.So we look to 180 days from the high,March 16 for a squareout,which comes in around Sep 14
 Gann's "natural time" pivots (equinox,solstice dates)... have been working well on this chart ...low in Dec,high in March,low in June.....high in September ?