Your income taxes would be $0, in your case, however I would file a tax return and here is why.
IRS will get information on all the sales, and if they match it to your return (which won;t be filed) they can and have in the past:
Shown the sales all as income with $0 cost basis
and all as short-term gain.
So if you bought a stock for $10,050 and paid $10,000 for it, they would show it a $10,050 gain versus a $50 gain.
