Prosper Trading Academy's Scott Bauer starts today's Big 3 by highlighting Arista Networks (ANET), noting the stock has rallied and filled a major gap from earnings. He then turns to the SPDR Gold Shares ETF (GLD) and its downtrend from the 200-day SMA and likes Dollar General (DG) as a potential earnings opportunity. Scott offers example options trades for his picks and Rick Ducat walks us through key technicals in the stock charts.