It takes about five minutes on any broker that shows the full book to see orders vanish outside the market as it moves.   Obviously you haven&#x27;t bothered to do that before commenting.  If those orders were real and not just fake demand they won&#x27;t vanish so consistently.<p>Here&#x27;s a good article for you to read:  <a href="http:&#x2F;&#x2F;www.bloombergview.com&#x2F;articles&#x2F;2014-10-02&#x2F;prosecutors-catch-a-spoofing-panther" rel="nofollow">http:&#x2F;&#x2F;www.bloombergview.com&#x2F;articles&#x2F;2014-10-02&#x2F;prosecutors...</a><p>There&#x27;s a reason why they made spoofing illegal.  The problem is, that you can&#x27;t tell the difference between spoofing and just market making, especially as the algos get particularly complex.  And when you start looking at in aggregate you see the real problem.