Derivatives are very much alive...

...and the Big 4, JPMorgan Chase, Bank of America, Goldman Sachs and Citigroup hold 91.3 percent of all derivatives on the books of all 6,419 insured banks. Put into dollars, these four banks hold $185 trillion in derivatives. Graphically, you could represent this as follows:

I know the above is hard to distinguish but it breaks down derivatives into four types. The last box is the total of all derivatives.

You think there is an element of risk here?