Financial stocks were advancing premarket Tuesday, with the State Street Financial Select Sector SPDR ETF (XLF) 0.4% higher.

The Direxion Daily Financial Bull 3X Shares (FAS) was up 1% and its bearish counterpart Direxion Daily Financial Bear 3X Shares (FAZ) was 1.1% lower.

Fiserv (FISV) has held talks about a potential sale of its STAR Network debit payments business, Reuters reported, citing an unnamed source familiar with the matter. Fiserv stock was up more than 5% pre-bell.