This nineteenth trading week of 2012 comes to a close with investors shocked and some calling for more regulation within the banking sector after the announcement by JP Morgan (JPM) that it sustained heavy derivative based losses.

FORBES: Weekly Market Wrap

These funds generally invest in publically listed securities and derivative instruments based on such securities.

FORBES: The Simple Truth about Hedge Funds

This group of critics would prefer that Shariah be used to modify the existing political economies to move away from interest-based debt and highly speculative and leveraged derivative transactions.

CENTERFORSECURITYPOLICY: Shariah��s Black Box

UBS, filed a lawsuit against a rival, Deutsche Bank, for refusing to pay out on a credit derivative on Armstrong World Industries, a maker of building materials based in Pennsylvania.

ECONOMIST: Credit derivatives

As "a last resort", the tax is also applied to transactions based on where the share, bond or exchange traded derivative was issued, even if it takes place in Asia, the US or Britain.

CNN: US banks warn over planned EU 'Tobin tax'