Comtech Telecommunications (NASDAQ:CMTL) adds US$8.8m to market cap in the past 7 days, though investors from five years ago are still down 87%

Comtech Telecommunications Corp. (NASDAQ:CMTL) has seen an 81% increase in the last quarter, but long-term investors have suffered an 88% decline in the past five years. The company's revenue has decreased annually by 5.1%, indicating underlying issues.