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. Portillo's Inc. shares have added about 1% since the beginning of the year versus the S&P 500's gain of 7.6%. What's Next for Portillo's Inc.? While Portillo's Inc. has underperformed the market so far this year, the question that comes to investors' minds is: what's next for the stock? There are no easy answers ...