{"id":352,"date":"2013-01-30T11:01:00","date_gmt":"2013-01-30T11:01:00","guid":{"rendered":"http:\/\/exchangedata.wpengine.com\/closing-prices-definition-what-change-in-2012\/"},"modified":"2025-09-13T08:21:50","modified_gmt":"2025-09-13T07:21:50","slug":"closing-prices-definition-what-change-in-2012","status":"publish","type":"post","link":"https:\/\/www.exchange-data.com\/es\/closing-prices-definition-what-change-in-2012\/","title":{"rendered":"Closing Prices Definition – What changed in 2012?"},"content":{"rendered":"

How would you define the term ‘closing price’?\u00a0<\/b><\/span>
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\n<\/span>One of the most common definitions for closing prices is \u00abthe price of the last transaction for a security in a trading session\u00bb or words to this effect. Others simply use the phrase \u00abthe final price for a security on a given trading day\u00bb.<\/span>
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\n<\/span>Unfortunately none of these definitions are accurate. The closing price can be a myriad of things, ranging from simply the last transaction for a security for the day to a price derived from a complicated calculation or process. The closing price can also vary within a market where one rule applies to one trading segment and another rule applies to another segment.<\/span>
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\n<\/span>As a provider of end-of-day pricing data, EDI has identified the need for closing price data to be defined as this is an area where ambiguity and inconsistency are rampant. The Closing Prices Handbook enables professionals to understand the definitions, compare the data and explain any pricing anomalies.<\/span>
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\n<\/span>In the past 12 months, there have been about 30 updates, some of which had a direct impact on the trading rules and the way the closing price is derived. There have also been some changes in MIC Codes, with the addition of new market segments. There are already 3 main changes planned for the first half of 2013 and there will be probably more to come.<\/span>
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\n<\/span>Below are some examples of the market changes that happened in 2012 and indirectly affect closing pricing data.<\/span>
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\n<\/span>Brazil – BM&F Bovespa<\/b><\/span>
\nMigration to the BM&F Bovespa Puma trading system<\/span><\/p>\n