As the trading week closed out, the soy complex incurred another series of impressive gains largely driven by production uncertainties in South America. The CFTC reports that speculators increased their net long positions in soybeans in the week to 4 January by 5,140 contracts to a total of 85,850 contracts. Supply Analysts have already begun reducing their estimates for Brazilian production (see graph below). If Brazilian consultancy AgRural is correct, Brazil will have the lowest yield since 2015/16. A new official estimate will be issued by Brazil’s Conab on 11 January and by USDA on 12 January. The trade expects USDA to make a modest cut from its current 144 MMT estimate for Brazilian soybeans to 141.6 MMT. They also expect U.S...