Stocks to watch on Tuesday: Under Armour (UA, UAA) - Goldman Sachs places the stock on the Americas Conviction Buy Linst and slaps a $28 price target on Under Armour. The market continues to focus on margins of the past and misses the margin potential of the future. The stock has nearly 40% upside and an investor will likely get plenty of dip buying opportunities. eBay (EBAY) - perfect example of a hated stock that got far too cheap. Elliott Management hopes to unlock value in a stock that recently traded above $40 and recently dipped below $30. Buy on the dips. Camping World (CWH) - another stock to buy on China induced weakness when Camping World is reliant on domestic sales. The test will be whether the recent lows at $11 hold. Disclosure: Long UA, EBAY