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DRC tax row rattles Randgold, while Redburn eyes bus operators
A founder becoming chairman risks too much interference in the business
In a bloated sector, the fast-food chain has won back customers by refocusing on price and convenience
US stocks retreat as Ackman loses $130m on burrito chain decline
Sandwich chain uses cola cups listing teaspoons of sugar in move away from sodas
Bank stocks struggle after Goldman and BofA deliver poorly-received results
S&P 500 and Dow give up ground after reaching record highs on Monday
Burrito chain’s shares rally as sales return to growth in December
US burrito chain names four new directors as it looks to stem sales decline
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