So there are rules govening stock markets. see attach for the rule book of SGX, which is on of the most sucsessfull makets in Asia. Why do we not have some thing like that. Read and see how clear the difine the Manupulation and fines and panelties for them.
For every one for comment.
chapter on Market Manipulation and False Market
http://rulebook.sgx.com/en/display/display_main.html?rbid=3271&element_id=1866
Full rule Book
http://rulebook.sgx.com/en/display/display_main.html?rbid=3271&element_id=889