 Shares of cement manufacturer CEMEX NYSE: CX are up 9.55 as of 11:30 a.m. EDT today and were as high as 12 in early-morning trading. Construction and any activity related to the use of cement and concrete have dramatically shrunk in the past several weeks, and CEMEXs shares have taken a hit as a result. CEMEXs stock has rebounded a little since then as construction activity in the U.S. and other places has been starting back up again, but these past few months have hit demand hard. 