BBC News reports that another hedge fund has closed down thanks to its failure to bail out of the oil speculation trade that boosted oil to a peak of $147 in July. This is yet another piece of evidence that people like Hank Paulson, who insisted that record oil prices were due to supply and demand, were either being less than honest -- particularly since his former employer Goldman Sachs Group (NYSE: GS) was a big beneficiary of this speculation -- or ignorant of reality.

The hedge fund in question this time is Ospraie Fund, which invested in commodities like oil and gold. It "has lost 38% of its value since the start of the year." Gold is down 22% to $800 from its $1,030.80 an ounce high in March. Oil has tumbled 25% to $109 since peaking in July, according to BBC News. But 1440 Wall Street suggests that the biggest commodity culprit in Ospraie's demise was copper's tumble. The lesson here is that if a sufficient number of big money speculators get together and decide to, say, short the dollar and go long commodities, there will seem to them to have safety in numbers.

But when the government started investigating the cause of spiking oil prices, the trade got very unprofitable very fast. As I posted, the Commodities Futures Trading Commission (CFTC) recently found that 81% of oil trading volume was driven by speculation. Then we witnessed the failure of SemGroup and the indictment of Optiver Holding for manipulating energy prices -- those funds who were too slow to reverse their positions and got creamed.