The big decline in cable today completes a head & shoulders top and points to a fall to 1.57.
GBPUSD measured target is approx 1.5730
Some technical signals are flashing oversold at the moment but a retest of the neckline is a good spot to sell.
Fundamentally, plenty of the good news is already priced into cable and the growth story could certainly run into some hiccups. At 1400 GMT today, NIESR releases its GDP estimate for the quarter ended in September. That will be the near-term driver.