Signet Jewelers Ltd. /zigman2/quotes/204614427/composite SIG -1.51% shares jumped 4.4% in Thursday premarket trading after the jewelry retailer reported third-quarter earnings that beat expectations and raised its full-year guidance. Net income totaled $83.9 million, or $1.45 per share, up from $900,000, or 2 cents per share, last year. Adjusted EPS of $1.43 was well ahead of the FactSet consensus for 72 cents per share. Sales of $1.538 billion were up from $1.300 billion last year and ahead of the FactSet consensus for $1.427 billion. Same-store sales rose 18.9%, ahead of the consensus for 11.6% growth. The company's portfolio includes the namesake retail chain, Kay Jewelers and Zales. Chief Executive Virginia Drosos said in a statement that the company maintained its momentum through Black Friday and Cyber Monday and is seeing a higher average transaction value despite the uncertainty brought on by COVID-19. Signet is guiding for fourth-quarter sales of $2.40 billion to $2.48 billion, and same-store sales growth of 6% to 9%. The FactSet consensus is for sales of $2.23 billion and a same-store sales decline of 0.4%. For the year, Signet is now guiding for sales of $7.41 billion to $7.49 billion, up from $7.04 billion to $7.19 billion, and same-store sales growth of 41% to 43%, up from previous guidance for growth of 35% to 38%. The FactSet consensus is for sales of $7.16 billion and same-store sales growth of 40.3%. Signet stock has skyrocketed 240.8% for the year to date while the S&P 500 index /zigman2/quotes/210599714/realtime SPX -1.84% has gained 20.2% for the period.