U.S. stocks drifted around their all-time highs, as a record-setting week for Wall Street closed on a quieter note.

A record-setting week for Wall Street is closing on a quieter note Friday, and U.S. stocks are pulling back from their highs hit during a worldwide rally the day before. The S&P 500 was down 0.5% in late trading,

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.