Quote from kjkent1:
The question that you're REALLY asking here is, "Why is it that whenever I trade, the trend suddenly goes against me?"
The answer is simple: Market makers and specialists work for firms that clear their own accounts. And, their proprietary software picks up the account number of those with whom they trade.
So, when the software picks up an account that buys and sells the same security more than once in the same day, the software instantly notifies the market maker/specialist that the account number is a potential daytrader.
And, what do you think happens the next time you trade in that security? If it's an NYSE stock, the specialist will tank or run the market against you in order to lock you into to a loss, and then the specialist will try to trade around you all day long, so that you cannot get out with a profit.
If it's a NASDAQ security, well it takes a little longer because there are multiple market makers, but very quickly, if you trade several times in a day, you will manage to trade more than once with a market maker and from there on out, that market maker will attempt to do the same as the specialist, i.e., run or tank the market against you and then trade around your position.
Are there ways to avoid the trap so that you can ride the waves, rather than be drowned by them?
Um...maybe...