Originally posted by illiquid
In staring at a number of small and mid-cap stocks, it occured to me that sometimes the volume being printed could easily be "faked". I wondered whether MM's could legally offer say 10,000 shares on ISLD and then proceed to hit his own offer, doing nothing but creating a print (or a series of prints, as if momentum players were jumping in) on T&S. I even called NASD to see if it was legal and got a half-baked response to the effect of "I don't think its illegal but why would a MM want to do that?". Besides the obvious stop-running, I'm sure there are a number of other tricks one can develop if he or she could print volume at will. Anyone know the rules on this?