Nathan's Famous, Inc.’s (NATH) investors have been experiencing some short-term gains from the stock of late. Shares of the branded licensor, wholesaler and retailer of products, which is currently operating from Jericho, NY, have gained 0.4% in the past three months against the industry’s 2.8% decline. However, in the same time frame, the stock underperformed the sector and the S&P 500’s 6.5% and 9.6% gains, respectively.A major development of NATH in recent months includes the announcement of its promisin ...