Having clocked a fresh post-Brexit vote of 1.4003 in Asia, GBP/USD is trading on the back foot in Europe. As of writing, Cable is trading at 1.3965 levels. The pullback appears to have been driven by technical factors. Commerzbank Analyst Karen Jones calls for caution, courtesy of various intraday divergences on intraday charts. Also, 13 counts on the 60 minute, 240 minute, daily and especially the one seen on the weekly chart could make it difficult for GBP bulls to scale 1.40.