A list of tradable futures contracts is available on the CME Group website. Lock products are theoretically rated zero at the time of execution and therefore generally do not require an initial exchange between the parties. However, depending on the movements of the underlying asset over time, the value of the contract fluctuates and the derivative can be either an asset (i.e., «in money») or a liability (i.e., «out of money») at different points in its duration. It is important that each party is therefore exposed to the credit quality of its counterparty and wishes to protect itself in the event of default. Since these contracts are not listed on the stock exchange, no market price is available to validate the theoretical valuation. Most of the results of the model depend on inputs (meaning that the final price is highly dependent on how we derive inputs from prices).  Therefore, it is common for OTC derivatives to be valued by independent agents who specify in advance the two counterparties involved in the transaction (when signing the contract). In finance, a «futures contract» (colloquial futures) is a normalized contract between two parties to buy or sell a particular asset of standardized quantity and quality at a price agreed today (the forward price), with delivery and payment made on a specific future date, the delivery date, and make it a derivative (i.e. a financial product derived from an underlying asset). Contracts are traded on a futures exchange that acts as an intermediary between the buyer and seller. The party that agrees to buy the underlying asset in the future, the «buyer» of the contract, is called «long,» and the party that agrees to sell the asset in the future, the «seller» of the contract, is called «short.» Exchange-traded derivatives (ETDs) are derivative instruments that are traded through specialized futures exchanges or other exchanges. A derivatives exchange is a market where individuals trade standardized contracts defined by the exchange.
 A derivatives exchange acts as an intermediary for all related transactions and takes an initial margin from both sides of the company to act as collateral. The largest futures exchanges in the world (in terms of number of transactions) are the Korea Exchange (which lists kospi Index Futures & Options), Eurex (which lists a wide range of European products such as interest rate and index products) and CME Group (consisting of the merger of the Chicago Mercantile Exchange and the Chicago Board of Trade in 2007 and the acquisition of the New York Mercantile Exchange in 2008). According to the BIS, total revenue from global derivatives exchanges totalled $344 trillion in Q4 2005. In December 2007, the Bank for International Settlements reported that «derivatives traded on exchanges increased by 27% to a record $681 trillion.»  Weather options and futures are used by companies as hedges to protect against adverse weather changes. These are not the same as catastrophe bonds, which are those with hurricanes, tornadoes, earthquakes, etc. mitigate the associated risks. Instead, weather derivatives focus on daily or seasonal temperature fluctuations around a predetermined temperature guideline. More information on these derivatives is available on the CME Group website. OTC business will be less common when the Dodd-Frank Wall Street Reform and Consumer Protection Act comes into effect. The law made it mandatory to clear certain swaps on registered exchanges and imposed various restrictions on derivatives. To implement Dodd-Frank, the CFTC has developed new rules in at least 30 areas. The Commission shall determine which swaps are subject to mandatory clearing and whether a derivatives exchange is entitled to clear a particular type of swap contract.
Nevertheless, the above-mentioned challenges and others in the rule-making process have delayed the full adoption of aspects of derivatives legislation. .