UK's Greggs drops after Jefferies downgrades to 'hold', cuts PT
** British baker and fast-food chain Gregg's shares GRG.L down 3.5% at 1621p ** Jefferies downgrades to "hold" from "buy", cuts PT to 1,610p from 2,500p ** "We are increasingly of the view that rapid uptake of GLP‑1 weight‑loss drugs is impacting Greggs" - Jefferies ** "We think Greggs remains high quality, but the more muted outlook drives our downgrade," brokerage says (Reporting by Sri Hari N S in Bengaluru) ((Srihari.ns@thomsonreuters.com))