Planning the exit in advance

[rightbyleft]

For example, lets say you bid a 1 lot and get filled, at a price 10, and the market
soon moves up, and you plan to exit at 15(arbitrary). Lets say I just got filled,
and price still at 10, if I offer a 1 lot at 15, and the price moves to 15, will
I exit my original long position, OR will I have 2 open positions, one long at 10 and
one short at 15?

Furthermore, is the above scenario(of what will happen) broker/platform dependent? If so, please state broker/platform.

I hope my question is clear.

Thanks

 

[fantastic]

Had the same question once...
If you are trading exactly the same contract,
usually your second trade closes your position.
some companies, though, might "artificially", allow
you to have a buy and sell position open in exactly the
same product.

 

[rightbyleft]

thanks for the reply, fantastic