What happens after a counterparty defaults on a derivative trade?
"The answer is in your question: derivatives are contracts so are enforced in the same way as any other contract.  If the counterparty refuses to pay immediately they will, in the first instance be billed by any intermediary (Prime Broker etc.) that facilitated the contract. If they still refuse to pay the contract may stipulate that a broker can ""net off"" any outstanding payments against it or pay out using deposited cash or posted margins. The contract will usually include the broker as an interested party and so they can, but don't need to, report a default (such that this is) to credit agencies (in some jurisdictions they are required to by law). Any parties to the trade and the courts may use a debt collection agency to collect payments or seize assets to cover payment. If there is no broker or the counterparty still has not paid the bill then the parties involved (the party to the trade and any intermediaries) can sue for breach of contract. If they win (which would be expected) the counterparty will be made to pay by the legal system including, but not limited to, seizure of assets, enforced bankruptcy, and prison terms for any contempts of court rulings. All of this holds for governments who refuse to pay derivatives losses (as Argentina did in the early 20th century) but in that case it may escalate as far as war. It has never done so for derivatives contracts as far as I know but other breaches of contract between countries have resulted in armed conflict. As well as the ""hard"" results of failing to pay there are soft implications including a guaranteed fall in credit ratings that will result in parties refusing to do business with the counterparty and a separate loss of reputation that will reduce business even further. Potential employees and funders will be unwilling to become involved with such a party and suppliers will be unwilling to supply on credit. The end result in almost every way would be bankruptcy and prison sentences for the party or their senior employees. Most jurisdictions allow for board members at companies in material breach of contract to be banned from running any company for a set period as well. edit: netting off cash flows netting off is a process whereby all of a party's cash flows, positive and negative, are used to pay each other off so that only the net change is reflected in account balances, for example: company 1 cash flows netting off the total outgoings are 3M + 500k = 3.5M and total incomings are 1.2M + 1.1M + 1.2M = 3.5M so the incoming cash flows can be used to pay the outgoing cash flows leaving a net payment into company1's account of 0."
It will affect Greeks as any bankruptcy affects the bankrupt. They already started reducing their welfare policies and government hand-outs. Default would mean that the government isn't able to meet its obligations. It's not only the external obligations, it's also the internal obligations - pensions, social security benefits, healthcare, public services, military (and the Greeks are in constant confrontation with the neighboring Turkey, with several armed conflicts throughout the years) - all that will get hit. Yes, they will get affected much more, definitely. If the government defaults on its debt, the holders of the debt get hung out to dry. You'll personally still owe just what you owed before, but the risk profile for the lender just shot up through the roof if the debt they hold is government-backed. What typically happens to brokerage accounts during similar situations? This depends on country, time and situation. Nothing is predictable in such situations. In Greece during the said period the stock exchanges were closed for 5 weeks. There was no trading.  Edits: Every situation is different and it would be unfair to compare one against another or use it to predict something else. Right now in India due to demonitization, cash withdrawal is limited. One can trade in stocks, unlimited bank transfers, transfer money out of India ...etc. Everything same except for cash withdrawal. In 1990, the ASEAN countries survived a financial collapse, everything was allowed except moving money out of country. according to the Options Industry council ( http://www.optionseducation.org/tools/faq/splits_mergers_spinoffs_bankruptcies.html ) put options  the shares (and therefore the options) may continue trading OTC but if the shares completely stop trading then: if the courts cancel the shares, whereby common shareholders receive nothing, calls will become worthless and an investor who exercises a put would receive 100 times the strike price and deliver nothing. The reason for this is that it is not the company whose shares you have the option on that you have a contract with but the counterparty who wrote the option. If the counterparty goes bankrupt then you may not get paid out (depending on assets available at liquidation - this is counterparty risk) but, unless the two are the same, if the company whose shares you have a put option on declares bankruptcy then you will get paid Exactly, the only reason for the US to default is if Congress voluntarily does so. I don't think they are self destructive enough to do it tho, it's okay if it happens with the Dems in power, but the current Congress wouldn't want to have that on their backs. Hopefully at least. Most national banks are required by the regulations of their host countries to hold significant reserves in the form of government debt. A default would likely wipe out their capital and your common stock would become worthless. The common stock only has positive value today because of the option value based on the possibility the host country will evade a default. "Lol, wtf kind of question is this?    First off, there is no single ""derivatives market"".  There's listed derivatives (ETD's) and OTC.  Then you can break each of those broad markets down into forwards, futures, options (includes all exotics such as binaries, single barriers, double barriers, one touches, double no touches, knock ins, knock outs, reverse knock ins, reverse knock outs, window barriers, etc), and swaps (including swaptions).  All of these are product specific (FX, FI, Credit, Equities, Commodities, etc).... so its more appropriate to look at derivatives with respect to the market they are in rather than all derivatives across all markets.  Now to your question... your question makes absolutely no sense.  Are you wondering what the daily volume is?  Notional outstanding?  Total exposure?" There are two basic kinds of derivatives - forward contracts and options.   A forward is an agreement between two parties for one party to buy/sell some asset to the other at a price that they agree upon today at some date in the future. An option is an agreement that gives one party the right, but not the obligation, to buy/sell the asset at some date in the future.  Most derivatives that exist are a combination of these two things. For instance, a futures contract is a standardized forward contract that is traded on an exchange, and a swap is a portfolio (or chain) of forward contracts linked together. American/Bermudan options are just options that allow you to exercise on more than one day. Good comparable.  Interest Rate Swap very often also come at a charge i.e. the hedging counterparty typically charges you a 'credit' and 'execution' charge ontop of what you pay them (fixed rate).  This means that the Mafia-like Bully is going to keep some money in his own pocket for dealing with the 'variable' bully and overall he will take a bit of a profit from this deal. If the share is listed on a stock exchange that creates liquidity and orderly sales with specialist market makers, such as the NYSE, there will always be a counterparty to trade with, though they will let the price rise or fall to meet other open interest.  On other exchanges, or in closely held or private equity scenarios, this is not necessarily the case (NASDAQ has market maker firms that maintain the bid-ask spread and can do the same thing with their own inventory as the specialists, but are not required to by the brokerage rules as the NYSE brokers are).  The NYSE has listing requirements of at least 1.1 million shares, so there will not be a case with only 100 shares on this exchange. "And the absolutely brilliant punchline: who do these regulators and leaders"" think will be the purchasers of said debt? Why other systemically important, TBTF banks of course! Which means that, in the by now quite familiar ""daisy-chaining"" of counterparties and collateral, once one bank fails, its exposure via collateral, repo and certainly, funding of other bank balance sheets, everything will promptly freeze as risk reprices, a la Lehman bonds.""" Gundlach shared a chart that showed how investors in European “junk” bonds are willing to accept the same no-default return as they are for U.S. Treasury bonds. In other words, the yield on European “junk” bonds is about the same—between 2 percent and 3 percent—as the yield on U.S. Treasuries, even though the risk profile of the two could not be more different.  Sounds like a strong indicator to me. How might this play out in the US? If your counterparty sent money to a correspondent account at another bank, then it is completely up to the other bank what to do with the money. If the wire transfer completed, then the account is not closed. If I were your business partner, I would immediately contact the bank to which the transfer was made and explain the situation and hopefully they will transfer the money back. Whenever a wire transfer is made, the recipients name, address, and account number are included. If that name, address and account do not belong to you, then you have a problem because you have no legal right to the money in a court of law. For this reason, you should be avoid any situation where you are wiring money to anyone except the intended recipient. Do you know what a derivative is? Did you know it is possible to own derivatives of assets that you do not own? Did you know there are derivatives of derivatives? Did you know that the derivatives market is many times larger than all the money on earth?  At some point modern markets became so many steps removed from the basic principles of business that they no longer make any sense. Most trades today are done by supercomputers with high speed connections running incredibly complex algorithms invented by the most brilliant mathematicians money can buy. All of whom are studying what each other are doing and trying to manipulate each others algorithms in such a way as to make money faster and harder than the other guy. It is way beyond what any human can comprehend let alone regulate.  Teams of the smartest people on earth can kind of grasp a tiny sliver of what is going on. "I will say in advance this is not a great answer, but I had a similar experience when I owned a CIT bond that defaulted. I ended up getting stock plus 5 newly issued bonds as a replacement for my defaulted bond. My broker had no clue on cost basis and didn't even try for the new securities, I called the ""hotline"" setup about CIT default and they knew nothing, and finally I read all the paperwork around the restructuring but it was less than transparent. So in the end I ended up claiming everything as a wash, no gain/no loss - which probably screwed me in the end as I believe I ended up down. It was a very small position for me and was not worth the headache :("