There's nobody like an investment banker to deliver yesterday's news tomorrow, and charge you dearly for it. Goldman Sachs have turned bullish on the dollar, while Merrill Lynch are calling crude oil down to $80. If bandwagon jumping was an Olympic sport, these guys would have more gold medals than Michael Phelps. After pumping up the commodity and Euro bubbles all year, a whiff of a bear market and they shamelessly perform a high speed U-turn. Even more amusing is the sudden discovery by the CFTC, which bent over backwards to convince Congress that oil prices were set by fundamentals, that they underestimated the share of trading accounted for by financial speculators. You don't say. If a canny operator like Boone Pickens has lost $2bn in a month on oil futures, the odds of another Amaranth Advisors style blowup are worryingly high over coming weeks ...