AAPL +0.35% Add to/Remove from Watchlist XLK +0.21% Add to/Remove from Watchlist NVDA -1.45% Add to/Remove from Watchlist Apple (NASDAQ: ) sold off last week following reports of China's plans to ban state employees from using iPhones for government work and from being brought into the office. The second concerns Nvidia (NASDAQ: ) and suggestions circulating online that the recent blow-out earnings resulting in the stock price achieving a high of $502.66 may have been boosted by some very creative accounting to allow certain parties to cash out at this high. Whether that is true remains to be seen. However,...