Quote from style:
before started trading i've signed the papers in which i claimed myself not to buy and sell 1 stock on 1 price in the same time. its called wash trading and strictly prohibited.
also manipulation of the stock price is strictly prohibited so how can all those "a$$holes" do that? its SEC's main purpose to struggle that... [/QUOte
All these rules don't apply to MarketMakers. They can pretty much do what they want. They are not supposed to buy and sell pre-market and afterhours but they do. They can and do buy and sell stock from their own inventory to manipulate the price. There is nobody policing their activities or keeping detailed records of all their trades. Why do you think Brokerages like Goldman, Morgan stanley make huge trading profits quarter after quarter. The SEC turns a blind eye to their activities. Also they don't have the means and infrastructure to monitor the activities of these a$$holes. If you can come up with some data that shows how the SEC monitors their activities on a day to day basis, let me know. I'll be really interested.