(Bloomberg) — Aon Plc, the insurance broker that moved its headquarters to London from Chicago, declined the most since May after a measure of revenue growth slowed.
Aon slid $2.29 or 3.7%, to $59 at 4:04 p.m. in New York on Friday, the biggest drop on the 81-company Standard & Poor’s 500 Financials Index. The shares are up 6.1% this year.