Grain markets bulls are still on the ropes ahead of two big upcoming events that make up what is arguably the most important two-week trading stretch of the year. First comes Tuesday’s USDA planted acreage and quarterly grain stocks reports, which combined make one of the biggest USDA data releases of the year for the grains. Second, the calendar turns to July late this week, quickly followed by the U.S. Independence Day holiday. History shows that grain trading in the few days following the Fourth of July holiday can be pivotal and volatile, including potentially accelerating or reversing existing price trends.