UK's Bunzl falls, reiterates flat annual operating margin outlook
** Shares of British business supplies distributor Bunzl BNZL.L fall 3.7% to 2,724p
** Co continues to expect full-year operating margin to be broadly flat year-on-year compared to the 7.6% operating margin reported in 2025
** "FY operating margin guidance implies a y-o-y decline in margin in H2, despite the inflationary tailwind" - Jefferies
** BNZL stock up ~35.36% YTD, as of last close