* GBP/USD has rallied from Dec's low at 1.3161 to 1.3669 today Jan 12

* GBP/USD has traded a series of significant lower highs since May 2021

* High probability another major high is posted between 1.37-1.38

* May 2021 peak 1.4250, Jul 1.3983, Sep 1.3913, Oct 1.3834

* 200-DMA helped influence Oct peak is 1.3737, 50% May-Dec 2021 drop is 1.3706

* EUR/GBP is also at a level that favours sellers.

(Jeremy Boulton is a Reuters market analyst. The views expressed are his own) ((jeremy.boulton@thomsonreuters.com))