Jim Cramer explains why the recent rally in bank stocks may not last

KeyCorp (KEY) reiterated its financial data on Tuesday, sending its shares higher – a rally that has been seen recently across the financial sector. However, the stock fell slightly after the opening of Wall Street on Wednesday. Indeed, according to Jim Cramer, investors are focusing their attention on large banks rather than small regional banks.

“There is a big divide between investment banks, major financial centers and regions,” Cramer said, warning that the banking sector’s recent recovery may not be sustainable.

Wells Fargo (WFC) and Morgan Stanley (MS) – two stocks in Cramer’s Charitable Trust, the portfolio used by the CNBC Investing Club – also posted gains in recent sessions, following a difficult year amid a crisis of confidence across the sector after the Silicon Valley Bank collapsed in March.