Shares of BJ's Wholesale Club Holdings Inc. /zigman2/quotes/203668982/composite BJ -3.32% rose 0.9% in premarket trading Thursday, after the membership-based warehouse retailer reported fiscal second-quarter profit and sales that rose above expectations, and surprise growth in same-store sales. Net income rose to $111.0 million, or 80 cents a share, from $106.6 million, or 76 cents a share, in the year-ago period. Excluding nonrecurring items, adjusted earnings per share rose to 82 cents from 77 cents, beating the FactSet consensus of 65 cents. Total revenue grew 5.6% to $4.18 billion, above the FactSet consensus of $3.82 billion, as same-store sales growth of 4.0% beat expectations for an 8.8% decline. "Given the level of uncertainty associated with the evolution of the pandemic, fiscal 2021 remains difficult to forecast," said Chief Financial Officer Laura Felice. "Our view of the future has improved from last quarter but we will continue to refrain from offering formal detailed guidance." The stock has run up 39.3% year to date through Wednesday, while the S&P 500 /zigman2/quotes/210599714/realtime SPX -1.22% has gained 17.2%.