September’s Best European Stock Performer May Be at Risk: Chart

A rally that pushed Glencore Plc to the biggest gain among Stoxx Europe 600 Index shares this month may have gone too far, according to technical analysis. Its 14-day relative strength index, a measure of market momentum, briefly climbed above 70 before falling back below it -- something that in the past has preceded stock declines. Glencore has surged 21 percent in September as commodities rose amid optimism central banks will remain supportive of growth.

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