It's not more bought than sold.....It's more trades at the current ask, than at the current bid when the trade happens.
Of course every trade has a buyer and a seller......But to give people an idea of where the trade was 'initiated', trades that go off at the ask are considered 'buys', and trades that go off at the bid are considered 'sells'.
The logic of that is that when someone wants to buy they would buy at the ask, since that's the price the lowest 'seller' is at. The highest bid price is the highest someone is willing to pay for the stock, SO, if someone wanted to sell, they would get a guaranteed fill at the bid.
Remember though that if a stock is dropping (in this case in a manipulative fashion), when you put your buy in at the bid, eventually someone will sell to you.
4Kids9Pets can probably explain it way better than I can..........z