ASB ▼ -1.9% - Associated Banc-Corp $ASB - Associated Banc-Corp Increases Prime Rate Associated Banc-Corp's stock declined 1.9% today following the company's announcement of an increase to its prime rate. Bank stocks often react negatively to rate hikes as higher borrowing costs can reduce loan demand and compress net interest margins for lenders. 16-SEP-2026 04:28 PM ET