BUZZ — Top of the Street: Nestle, Siemens, Johnson Matthey, Bouygues
A round-up of notable broker activity this morning from Europe's top-ranked* analysts: * J.P. Morgan upgrades Swiss food and drinks group Nestle to "overweight" from "neutral", saying that "FY27 is shaping up as a vintage year" as the broker expects sales volumes and margins to bounce back * Jefferies cuts German engin