GOODLETTSVILLE, Tenn. — Dollar General Corp. today reported fiscal second-quarter earnings of $637 million.

On a per-share basis, the company said it had net income of $2.69.

The results surpassed Wall Street expectations. The average estimate of 25 analysts surveyed by Zacks Investment Research was for earnings of $2.59 per share.

The discount retailer posted revenue of $8.65 billion in the period, also surpassing Street forecasts. Twenty-four analysts surveyed by Zacks expected $8.57 billion.

Dollar General expects full-year earnings to be $9.60 to $10.20 per share.

Dollar General shares have climbed 12% since the beginning of the year, while the S&P’s 500 index has climbed 20%. The stock has increased 18% in the past 12 months.