ERBB is a great stock to trade. Plenty of Volume. Plenty of price change. Buy Low, then sell later. ERBB is also a good stock to accumulate today for the future sale. Now might be a good time to place your limit orders low and wait for the fill. ERBB's volume and two billion shares makes it easy to trade. MDBX's volume today is 300 shares, so far. Now thats a stock that is extreamly difficult to trade or accumulate.