Berkshire Hathaway owns 31% of Sirius XM Holdings, the satellite-radio company, and one of Berkshire’s investment managers also holds an interest in the company.Berkshire held 105.2 million shares of Sirius XM as of Sept.

Sirius XM Holdings (NASDAQ: SIRI) investors have struggled to lock onto a signal from the satellite radio giant. The stock is down 55% this year amid disappointing results with concerns about whether the company can manage to move the dial toward stronger growth.

While Sirius is not a horrible stock, its next five years look likely to be as lackluster as the previous five years. While the satellite radio business remains a stable cash cow, there isn't much opportunity for growth, especially with rising competition from alternatives like Apple Car Play.