Here's Why Goldman Upgraded Adtran Despite Near-Term Risks By: Benzinga via Benzinga January 16, 2018 at 15:28 PM EST Shares of ADTRAN, Inc. (NASDAQ: ADTN), a small-cap provider of networking and communications equipment, have lost more than 15 percent ... Read More >> Related Stocks: AT&T Inc Adtran Holdings Inc CenturyLink Verizon Communications