CNBC Closing Bell May 6, 2013
confidence across the globe on this date three years ago in 2010. but there is more high frequency trading than ever before. could it happen again? we have a special report. we're going to look at that coming up. >> indeed, we will. plus dow component pfizer selling viagra directly to patients on its website. it is a move that could have a huge impact on the drug industry. every pharmaceutical is watching it very closely. we're going to bring you much more on that developing story. >> exactly. meantime, let's get you caught up on the day. stutter step opening this morning for the d...