Seneca Foods Corporation (SENEA) investors have been experiencing some short-term gains lately, despite the stock’s bumpy ride in recent months. Shares of this Fairport, NY-based provider of packaged fruits and vegetables have gained 28.2% in the past three months against the industry’s 9.3% decrease. In the same time frame, the stock also outperformed the sector and the S&P 500’s declines of 0.1% and 6.1%, respectively.Recent developments at Seneca Foods include the acquisition of the Green Giant U.S. froz ...