The Houston Texans just finished their ninth day of training camp yesterday evening, and it was arguably their most competitive session thus far. With that in mind, here is a detailed stock report for the team heading into the first official preseason week for the entire NFL! The Houston Texans have risers and fallers heading into the first week of preseasonStock UpCalen Bullock, safety, third-yearCalen Bullock has been an absolute menace in the secondary throughout training camp. Collin Wright, cornerback, undrafted free agentThe former Stanford Cardinal -- and Missouri City-native -- has done nothing but make plays since training camp has started, and multiple key figures have noticed. Stroud, Davis Mills and Graham Mertz have all contributed to the turnover pool throughout training camp.