The discount retailer's shares fell more than 16% after it cut its outlook for the holiday season due in part to tariff costs.
The company is eyeing a move away from its $1-only price structure.
The discount retailer's shares fell more than 15% after its earnings came in one cent below analysts' estimates.
The rough holiday quarter for discount chains continues as Dollar Tree's margins were pressured by rising labor and freight costs.
The merger clears the final regulatory hurdle after the discount retailers agree to sell 330 Family Dollar stores.
Antitrust concerns thwarted the deal, Family Dollar says, but skeptics abound.
If Dollar General's offer is accepted, the combined company would have 20,000 stores, $28 billion in sales and a lot of leverage.
