Shares of Dollar Tree Inc. are sliding Wednesday premarket. The discount retailer missed fourth-quarter profit expectations and offered a dismal outlook for the first quarter as shoppers spend less. The retailer plans to shutter more than 600 stores.

Dollar Tree posted adjusted earnings for the fourth quarter of $2.55 per share on revenue of $8.63 billion. Analysts polled by Bloomberg had anticipated $2.66 per share on revenue of $8.67 billion.

Here's a snapshot of the fourth quarter (courtesy of Bloomberg):

• Adjusted EPS $2.55, estimate $2.66

•  Loss per share $7.85 vs. EPS $2.04 y/y

• Net sales $8.63 billion, +12% y/y, estimate $8.67 billion

• Dollar Tree net sales $4.96 billion, +15% y/y, estimate $4.91 billion

• Family Dollar net sales $3.67 billion, +7.4% y/y, estimate $3.73 billion

• Gross profit margin 32.1% vs. 30.9% y/y, estimate 32.1%

• Dollar Tree gross margin 39% vs. 36.7% y/y, estimate 37.7%

• Family Dollar gross margin 22.8% vs. 23.6% y/y, estimate 24.7%

• Total location count 16,774, +2.7% y/y, estimate 16,793

• Dollar Tree Locations 8,415, +3.5% y/y, estimate 8,391

• Family Dollar locations 8,359, +1.9% y/y, estimate 8,368