U.S. stock market indices are setting new record highs about every other day, but commodity markets have been generally headed in the opposite direction. In particular, U.S. grain and soy prices have been sagging under the pressure of big fall harvests that have more than offset the positive influence from brisk domestic and export demand. Thus, it is certainly not surprising that managers of investment money pools have for some time been shifting funds from commodity markets into equities. So far in 2013, it seems that funds and exchange-traded funds (ETFs) for almost everything else have been outperforming those tied to commodities.Even so, the soybean complex still retains some attraction for money managers. CFTC's last Commitment of T...