Isn't there a tax consequence at the end of the year for all this flipping? I do know that if you sell a lot or a portion of your shares at a loss to buy back lower (within a 30 day period) the loss is considered a wash sale and therefore cannot be claimed as a capital loss on your tax returns. There are tax concerns on the opposite side as well (selling for a profit). This is what mainly keeps me from flipping much if at all.