U.S. megabanks JPMorgan Chase & Co JPM, Bank of America Corp BAC and Citigroup Inc C are just three examples of GSIBs. Related Link: S&P 500 Volatility Continues As Investors Digest Latest Banking Sector Headlines Poonawala says the recent liquidity crisis will likely force regulators to close the regulatory gap between regional banks and GSIBs. He said there are several changes regulators could make to crack down on smaller banks: Related Link: 15 Years Later, How Much Did The 2008 Financial Crisis Bailouts Actually Cost American Taxpayers?