Shares of Sirius XM Holdings Inc. SIRI shed 5.84% to $24.10 Tuesday, on what proved to be an all-around positive trading session for the stock market, with the NASDAQ Composite Index COMP rising 0.56% to 18,

It's the only satellite radio provider, but this isn't such a big advantage now that nearly all of its customers already pay for mobile internet service.

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.

The major market indices may have hit fresh all-time highs this week, but Sirius XM Holdings (NASDAQ: SIRI) investors weren't invited to the party: Shares of the satellite radio provider hit a 12-year low this week.

This was the stock's third consecutive day of gains.