Three Bank Stocks with Uncertain Futures: PennyMac Mortgage Investment Trust, Northwest Bancshares, and Flagstar Financial.

Three bank stocks with open questions are PennyMac Mortgage Investment Trust (PMT), Northwest Bancshares (NWBI), and Flagstar Financial (FLG). PMT faces challenges in its real estate investment trust business, while NWBI's sales trends and net interest income growth have been unexciting. FLG has struggled with declining loan demand and regulatory changes. Investors should be cautious about these stocks due to their cyclical nature and exposure to credit risk and regulatory changes.