2017-07-17: Benzinga's Option Alert Recap From July 17. The Most Bought And Sold Stocks Of The First Half Of 2017, According To TD Ameritrade Clients. NVIDIA Shares Down ~$1.10 Over Last Min. As Traders Circulating Concerning Report From 'Guru Of 3D'. Nvidia Option Alert: Fri $177.5 Calls Sweep (53) at the Bid: 1522 @ $0.538 vs 894 OI; Ref=$166.455