Amazon's potential deal with DISH Network to sell wireless plans could have a positive short-term impact on its stock as it would help the company expand its relatively small footprint in the consumer smartphone market. This partnership could increase Amazon's market share and revenue in the smartphone market, leading to a positive impact on its stock price. However, the relevance and importance are lower compared to DISH Network as Amazon has a more diversified business.

DISH Network's potential deal with Amazon could have a positive short-term impact on its stock as it would allow the company to market its service to millions of prospective customers and help Amazon expand its relatively small footprint in the consumer smartphone market. This partnership could increase DISH Network's market share and revenue, leading to a positive impact on its stock price.

AT&T's stock is recovering from last week's volatility caused by reports of DISH Network potentially selling wireless plans through Amazon, which could increase competition in the wireless market. However, the stock has declined 10.31% in the past month due to disappointing Q1 earnings, which showed cash flow below expectations. The short-term impact is neutral as the stock is recovering but still faces challenges from the earnings report and potential competition.