Grain and soy markets were mixed overnight amid lighter volume than has been seen the past several overnight sessions. However, the day session was anything but quiet, primarily due to the weekly export sales report. General Comments Grain and soy markets were mixed overnight amid lighter volume than has been seen the past several overnight sessions. However, the day session was anything but quiet, primarily due to the weekly export sales report. Last week's export sales of soybeans were startlingly large at 2.1668 MMT, about twice as much as the trade expected. Corn sales also reached seven figures at 1.0312 MMT. Wheat sales were small at 299,400 MT, soymeal sales were downright tiny at just 23,000 MT and soyoil sales were 10,600 MT. Gra...