A JPMorgan office building is shown, Monday, May 14, 2012, in New York. JPMorgan Chase, the largest bank in the United States, said Thursday that it lost $2 billion in the past six weeks in a trading portfolio designed to hedge against risks the company takes with its own money. (AP Photo/Mark Lennihan)
WASHINGTON—The $2 billion  trading loss at JPMorgan Chase has renewed calls for stricter oversight  of Wall Street banks. Two years after Congress passed an overhaul of  financial rules, many of those changes have yet to be finalized.
JPMorgan's misstep gives advocates of stronger regulation an opening to argue that regulators should toughen their approach.
The  Obama administration has argued that it went as hard on banks as  possible without further upsetting global finance. Now Democratic  lawmakers and administration officials say JPMorgan case proves that  more change is needed.
Still,  many in the industry warn against reading too much into one trading  loss. They say losing money is an inevitable part of taking risk, as  banks must.
Some fear that  after JPMorgan's announcement, regulators will greet industry concerns  with more skepticism as they flesh out key parts of the overhaul law.
Here's a look at four key parts of the financial overhaul and how they might be affected by JPMorgan's losses:
This  provision restricts banks' ability to trade for their own profit, a  practice known as proprietary trading. It is named for former Federal  Reserve Chairman Paul Volcker.
--  Battle lines: Banks say it disrupts two of their core functions:  Creating markets for customers who want to buy financial products and  managing their own risk to prevent major losses.
They  say proprietary trading was not a cause of the 2008 financial crisis  and the rule is a means of political revenge on an unpopular industry.  Advocates of stronger regulation argue that the rule would have  prevented JPMorgan's loss. They say the trades were made to boost bank  profits, not to protect against market-wide risk.
--  State of play: A draft of the rule satisfied neither side. It includes  exceptions for hedging against risk and for market-making, but banks say  they the exceptions are too narrow and difficult to enforce. It's  nearly impossible to tell whether a bank bought or sold something for  itself or for customers.
--  JPMorgan effect: Attitudes about the Volcker rule are likely to shift as  a result of JPMorgan's disclosure, experts say. Even if JPMorgan's  trades truly were a failed attempt to protect against risk, the  resulting loss strengthens the argument that regulators should err on  the side of scrutinizing trades.
During  the 2008 financial crisis and the bailouts that followed, the  government was unwilling to let the biggest banks fail, for fear of  upending the financial system. As part of the overhaul, Congress created  a process to shut down financial companies whose failure could threaten  the system.
-- Battle lines: Most players agree that this is a good idea, despite some differences on the details.
--  State of play: The Federal Deposit Insurance Corp., the agency  responsible for closing smaller banks that falter, has taken the lead on  writing rules to shut down big firms. Most observers believe that the  FDIC, under acting chairman Martin Gruenberg, is on track toward  creating a system that markets would trust to close a big bank.Banks have been working with  regulators to create "living wills" detailing how they would wind  themselves down without disrupting markets. This exercise has forced  them to look more deeply at their operations -- a defense against the  accusation that banks have grown "too big to manage."
However,  U.S. regulators can't do it alone. A big problem after the failure of  Lehman Brothers investment bank in 2008 was what to do with its overseas  operations. It wasn't clear which regulators were in charge, or whose  bankruptcy court would control the disposal of Lehman's assets.
Regulators  are negotiating with their European counterparts, but it could take  years before they agree on rules that would allow a global company to  dismantle itself without spreading confusion through the financial  markets.
-- JPMorgan effect:  Like other banks, JPMorgan supports giving the government the power to  dismantle a failing bank. CEO Jamie Dimon said so clearly in an  appearance on "Meet the Press" on Sunday.
JPMorgan's loss probably doesn't affect the likelihood that regulators will break up a bank in the future. The loss wasn't nearly big enough to threaten JPMorgan with failure.
JPMorgan's loss probably doesn't affect the likelihood that regulators will break up a bank in the future. The loss wasn't nearly big enough to threaten JPMorgan with failure.
JPMorgan's  bets involved complex investments known as derivatives whose value is  based on the value of another investment. Before 2008, many derivatives  were traded as individual contracts between banks and hedge funds,  without any transparency for regulators. The financial overhaul sought  to bring more derivatives onto regulated exchanges and force derivatives  traders to put up more cash in case their bets turned against them.
--  Battle lines: Overhauling the rules governing this market, estimated at  $650 trillion, has proved as complex as the investments themselves.  Banks support many parts of the overhaul but generally argue that  forcing too much transparency would make it harder and more expensive  for companies to use derivatives as a hedge against risk. They say it is  an unnecessary cost that would be spread across all types of companies.
The  agency most responsible for implementing these rules, the Commodity  Futures Trading Commission, faces the threat of a much smaller budget  than it says it needs to write the rules and increase its oversight of  the derivatives market.
Advocates  for stronger regulation argue that the new rules apply to the sorts of  derivatives believed to have magnified the financial crisis -- and  JPMorgan's losses -- but do not threaten investments like energy  futures, for example, which airlines use to control fuel costs. They say  banks are just trying to protect a lucrative business that other  companies can't compete in today.
--  State of play: About half the rules are done, but many crucial  questions have yet to be decided. The rules will be phased in this fall  through next spring. Banks are lobbying hard to protect their hold on  this profitable business. Banks support pending legislation that would  limit U.S. regulators' control over derivatives trades by their overseas  affiliates.
-- JPMorgan  effect: Fairly or not, JPMorgan's big loss on derivatives trades is  likely to revive scrutiny of that market. That could give advocates of  tighter rules some juice in ongoing negotiations with regulators. It  also could empower those who believe the budgets of the CFTC and  Securities and Exchange Commission should be increased to reflect the  need for broader oversight.
BANK OVERSIGHT
The  overhaul calls on the Federal Reserve to oversee the biggest and most  important financial companies and apply a stricter set of standards for  financial fitness. For example, the companies must hold more capital as a  buffer against future losses. Before, the biggest banks were overseen  by a patchwork of regulations.
--  Battle lines: Industry officials say they're working with regulators to  fine-tune how big companies will be overseen. They are concerned, for  example, about the extra costs imposed on the big companies to offset  the extra risk they create in the financial system.
--  State of play: Industry officials say many of these changes were  happening behind the scenes even before the financial overhaul was  passed in 2010. They say banks already are better capitalized and meet  other standards laid out by regulators.
It's  still not known exactly which financial companies will fall into this  category. The biggest banks are included automatically. Regulators have  more discretion when it comes what are known as non-bank financial  companies, such as huge insurance companies. Companies on the margin  reportedly are lobbying hard to avoid this designation.
--  JPMorgan effect: As the nation's biggest bank, JPMorgan automatically  will face stricter oversight. The trading loss there is unlikely to  affect detailed negotiations about how exactly such companies will be  overseen.
By              Daniel Wagner AP Business Writer 
