The sustainability of the stock's immediate price movement based on the recently-released numbers and future earnings expectations will mostly depend on management's commentary on the earnings call. U.S. Cellular shares have added about 17.6% since the beginning of the year versus the S&P 500's gain of 11%. What's Next for U.S. Cellular? While U.S. Cellular has outperformed the market so far this year, the question that comes to investors' minds is: what's next for the stock?