Warren Buffett's favorite market indicator soars to 30-month high, signaling global stocks are overpriced

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· *Warren Buffett's preferred stock-market gauge hit a 30-month high this week, signaling worldwide equities are overvalued and may be due for a correction.*
· *The global version of the "Buffett indicator" — which compares the value of the world's stocks to global GDP — zoomed past 100% for the first time since...