By:  Thomas Steffanci, PhD, Senior Portfolio Manager A series of margin calls and OPEC’s reiterating its ongoing 400,00 barrels/ per day increase in output lit a further surge in natural gas and oil today. Hedge funds and large traders have been making bets that natural gas prices in the U.S. would rise faster than in Europe. So, they shorted natural gas futures in Europe (via a futures exchange...

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