They can disguise what they do under the guise of Market Maker but when you buy and sell..manipulate markets by buying and selling...shorting and covering your inventory for the sake of profit...boxing tickers and preventing them from moving for profit at the cost of losses to the average trader....I consider you a Professional Trader....there are many Market Makers like RAFF,PERT , LAFC that are there to make a market and then there is NITE...the one Market Maker that has hit the news for wrongdoing more times than I can remember.....AIMHO..