You don't get it, do you?
There are derivatives such as you describe, specifically futures, options and futures options that spread risk and increase liquidity in the market; and then there are the toxic derivatives like credit default swaps (CDS) or collateralized debt obligations (CDO) that expose the banks to huge risk. It's estimated that there is more than $1.5 QUADRILLION of outstanding derivatives.
OTC derivatives include collateralized debt obligations (CDOs),which often represent the packaging together of large numbers of mortgage backed securities, along with other debt instruments. A CDO can also be concocted out of other CDOs, in which case it qualifies as a synthetic CDO or CDO squared (CDO²). Notice that a synthetic CDO is not really an investment, but rather a form of gambling, in which a speculator in effect places a bet on the performance of some other financial instruments. This fact exposes the big lie inherent in the widespread reactionary myth that the current depression was caused by poor people taking out subprime mortgages on slum properties and then defaulting on these loans, thus bringing down the US and British banking systems. This fantastic story ignores the fact that derivatives were only a wager placed by speculative bettors from afar on mortgage backed securities which included some subprime notes.
Credit default swaps represent bets on whether a given asset or company will go bankrupt or not. As such, they can be used as insurance against such an eventuality, or else they can be used to make money on the insolvency. CDS are therefore a form of insurance, but they are issued by counterparties who have not registered as insurance companies and who have not met the legal and capital requirements which are necessary to function as an insurance company. It ought therefore to be clear that CDS have been totally illegal all along, and have flourished only because of an outrageous failure by state insurance regulators to enforce applicable laws against the privileged class of financiers.
Structured investment vehicles (SIVs) are another type of derivative, commonly used to wrap up masses of CDOs and synthetic CDOs and then to park them off-balance sheet, where they can be hidden from regulatory and public scrutiny.
If you properly account for the toxic derivatives on the banksters balance sheets, the big banks are insolvent.
By the way, as I write this, gold is $1598 and silver is $39.93. Got any?

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