Kroll Bond Rating Agency affirmed the A+ senior unsecured debt and deposit ratings, A subordinated debt rating and K1 short-term debt and deposit ratings for New York-based Signature Bank.

The outlook for all long-term ratings is stable.

Among the factors considered in the ratings are the bank's comparatively strong leadership team, disciplined underwriting practices and solid capital ratios. The rating agency noted that it has a favorable view of the bank's continued focus on expanding national presence, growing core deposits and diversifying operations, bolstered by the addition of digital banking, fund banking, venture banking and the Kanno-Wood team.