The size of the municipal CDS market is about $50 billion. Five large derivatives dealers- Bank of America Merrill Lynch, Citigroup, Goldman Sachs, J.P. Morgan Chase, and Morgan Stanley- met in November 2010 to discuss standardizing paperwork for "muni CDSs" to attract more buyers and sellers. The biggest banks are hoping to profit from the deteriorating finances of US cities and states. The CDSs or credit default swaps require swap sellers to compensate buyers if a municipal issuer misses an interest payment or restructures its debt. This makes states nervous and they are suspicious of CDSs, believing that this encourages speculators to bet on, and worsen states' financial situation. California is about to require all 86 of its underwriting banks to disclose what CDSs they have traded on the states' debt, for customers or for their own accounts.