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BHP Shares Slide as UN Probe Says Samarco Spill `Toxic'

A United Nations probe into a deadly mine spill in Brazil said waste from a burst dam was toxic and steps taken by BHP Billiton Ltd. and Vale SA to prevent harm weren’t sufficient. The companies’ joint venture Samarco Mineracao SA said there’s no danger to human health. BHP shares fell.

Episode 2: Pfizer Sticks It to U.S. Treasury

In this episode, Alex and Global M&A Managing Editor McCracken discuss the largest deal of the year and the biggest health care deal ever, Pfizer Inc. and Allergan Plc’s $160 billion merger. They ponder whether the deal, constructed so that Pfizer will pay lower taxes by domiciling in Ireland, opens the door for more so-called inversions just as the U.S. Treasury tries to crack down on them.

The Politics of High Drug Prices

Bloomberg's Drew Armstrong discusses the politics of high drug prices with Bloomberg's Scarlet Fu on "Bloomberg Markets." (Source: Bloomberg)

Oil Markets

Buhari Bounce Becomes Bust as Nigeria Policies Annoy Investors

When Muhammadu Buhari clinched victory in Nigeria’s presidential elections in March, stocks soared as investors looked to the former military ruler to reverse decades of economic mismanagement and policy inertia. Now hopes have fizzled in his ability to turn around Africa’s largest economy and oil producer.

Stocks Fall on China Rout as Yuan Weakens; Europe Futures Slump

A selloff in Chinese stocks spread to European index futures as falling industrial profits and a deepening probe of the financial industry shook investor confidence in the world’s second-largest economy. The yuan weakened, while commodities slumped.

Glencore Says Disputed Libyan Oil Deal Has Global Support

Glencore Plc oil chief Alex Beard defended the company’s crude-export contract with Libya’s National Oil Corp. in the west of the divided country after the competing administration in the east threatened to block its tankers.