PNC ▼ -3.5% - The PNC Financial Services Group, Inc. $PNC - PNC Bank, N.A. Changes Prime Rate PNC Bank lowered its prime rate, a move that typically compresses net interest margins for banks by reducing the yields they earn on variable-rate loans and adjustable-rate mortgages. The 3.5% decline in PNC's stock price reflects investor concern about the impact of lower lending rates on the bank's profitability and net interest income. 16-SEP-2026 05:21 PM ET