Robert Morse
Sponsor
I think we missed the point because at no point did you say you wanted to avoid selling a long term position. A better process for brokers that allow the selling of tax lots is to do that or choose LIFO vs the default FIFO.
You miss this important point: the first trade might be a long term investment, and the new trade shall be just a short term investment.
The current situation is unsatisfactory b/c it negatively impacts an already existing position. A new trade should always be possible w/o touching (ie. closing) any previously opened position.