Signet Jewelers (NYSE:SIG) raises FY2027 Adj EPS guidance from $8.80-$10.74 to $9.20-$11.00 vs $10.36 analyst estimate. Raises FY2027 sales outlook from $6.600 billion-$6.900 billion to $6.700 billion-$6.900 billion vs $6.836 billion estimate.