By now most of market participants are aware of the ubiquitous front running going on in the markets. Michael Lewis detailed only some of its aspects in its excellent Flash Boys.
Here is some amazing investigative work that uncovered that frontrunning is now almost literally Star Wars, with lasers being used to outrun regular investors.
Enjoy this amazing piece and may the Force will be with you )))
http://www.zerohedge.com/news/2015-12-27/meanwhile-over-new-york-stock-exchange-lots-lasers