Chemring: Jefferies upgrades from hold to buy targeting GBp 360.

Edison International: Wells Fargo Securities downgrades to equal-weight from overweight. PT up 6% to $73.

Elementis: Jefferies downgrades from buy to hold, targeting GBp 130.

General Mills: Mizuho Securities initiated coverage with a recommendation of neutral. PT set at $75.

McDonald's: Fubon Securities upgrades to buy from neutral. PT up 15% to $308.

QinetiQ: Jefferies downgrades from buy to hold targeting GBp 390.

Synthomer: Jefferies downgrades from buy to hold targeting GBp 160.