Today's up-and-down price action in grain and soy futures markets is typical market fare leading up to key USDA reports, which in this case are the 30 June acreage and quarterly stocks reports. Current markets are dealing with a rather complex set of factors. General Comments Today's up-and-down price action in grain and soy futures markets is typical market fare leading up to key USDA reports, which in this case are the 30 June acreage and quarterly stocks reports. Current markets are dealing with a rather complex set of factors. Among those are persistent and excessive rainfall across the southern, central and eastern Corn Belt, uncertainties about planted acreage that are complicated by the wet weather, Canadian weather problems, the r...