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	<title>Comments on: Do automated trading systems trade one stock/instrument or many?</title>
	<atom:link href="http://www.SecretsForStockTrading.com/blog/stock-trading-system/do-automated-trading-systems-trade-one-stockinstrument-or-many/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.SecretsForStockTrading.com/blog/stock-trading-system/do-automated-trading-systems-trade-one-stockinstrument-or-many/</link>
	<description>Stock Trading Information</description>
	<lastBuildDate>Thu, 02 Feb 2012 09:16:59 +0000</lastBuildDate>
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		<title>By: Boris</title>
		<link>http://www.SecretsForStockTrading.com/blog/stock-trading-system/do-automated-trading-systems-trade-one-stockinstrument-or-many/comment-page-1/#comment-1712</link>
		<dc:creator>Boris</dc:creator>
		<pubDate>Fri, 12 Mar 2010 04:00:59 +0000</pubDate>
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		<description>Depends on the strategy employed, most prob trade one or two but some prob can trade all stocks at the same time.&lt;br&gt;&lt;b&gt;References : &lt;/b&gt;&lt;br&gt;</description>
		<content:encoded><![CDATA[<p>Depends on the strategy employed, most prob trade one or two but some prob can trade all stocks at the same time.<br /><b>References : </b></p>
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	<item>
		<title>By: Barney</title>
		<link>http://www.SecretsForStockTrading.com/blog/stock-trading-system/do-automated-trading-systems-trade-one-stockinstrument-or-many/comment-page-1/#comment-1711</link>
		<dc:creator>Barney</dc:creator>
		<pubDate>Fri, 12 Mar 2010 03:10:59 +0000</pubDate>
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		<description>Automated trading systems can and do have the capabilities of trading more than one security, I&#039;m not sure of the currency but the programming logic should follow securities.

Trading system do scan many securities,  There&#039;s not enough room here to explain how it works if you looking for programming logic.

If your looking for all the details in designing a system, this will cost you big bucks.  Some one may want to take the time to list the details, but I wouldn&#039;t unless a substantial down payment was made.&lt;br&gt;&lt;b&gt;References : &lt;/b&gt;&lt;br&gt;industry experience</description>
		<content:encoded><![CDATA[<p>Automated trading systems can and do have the capabilities of trading more than one security, I&#8217;m not sure of the currency but the programming logic should follow securities.</p>
<p>Trading system do scan many securities,  There&#8217;s not enough room here to explain how it works if you looking for programming logic.</p>
<p>If your looking for all the details in designing a system, this will cost you big bucks.  Some one may want to take the time to list the details, but I wouldn&#8217;t unless a substantial down payment was made.<br /><b>References : </b><br />industry experience</p>
]]></content:encoded>
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	<item>
		<title>By: binaryalgorithm</title>
		<link>http://www.SecretsForStockTrading.com/blog/stock-trading-system/do-automated-trading-systems-trade-one-stockinstrument-or-many/comment-page-1/#comment-1710</link>
		<dc:creator>binaryalgorithm</dc:creator>
		<pubDate>Fri, 12 Mar 2010 02:24:59 +0000</pubDate>
		<guid isPermaLink="false">http://www.SecretsForStockTrading.com/blog/stock-trading-system/do-automated-trading-systems-trade-one-stockinstrument-or-many/#comment-1710</guid>
		<description>For index funds, currency pairs, futures or commodities, it tends to be a specialized program designed with that security in mind since each has their own behaviors.

Automated trading systems can be designed to trade many stocks at a time, but keep in mind that the complexity of such systems increases dramatically because money/risk management change. Normally there is a filtering mechanism for the strategy and then a money management technique based on the timeframe (daytrade, swing trade, long term).

The short of it: You can define a rule for anything you can get a reliable data feed on.

I recommend to join or visit this site as it contains a wealth of information (got to sort through people&#039;s opinions though, use your own judgement; it has a list of brokers with reviews also): http://www.elitetrader.com/

Often, proprietary brokers will put hard limits to protect from programming errors, for example: limit the dollar amount of all assets long or short to $100000. This can help when the system first goes live, especially if high margin is used. I recommend avoiding proprietary firms unless you have experience with them, as they can be risky if you don&#039;t know what you&#039;re getting into; I will not be listing any here.

If you are programming the system, then it&#039;s useful to have an API available. I personally use Visual Basic 6 and the broker&#039;s API for simplicity. Some brokers have their own scripting languages or interfaces.

These are some brokers that I&#039;ve seen, but I haven&#039;t dont live trading in awhile so I cannot guarantee any specific results:

TradeStation (when you want all the bells and whistles, must have $30000, but well-supported scripting language and good interface) - http://www.tradestation.com/automated_trading/howitworks.shtm

Interactive Brokers (simpler platform, similar rates, splits forex spread and commission which makes it more transparent; API for Visual Basic 6; has lots of user-created 3rd party automation or assisted trading tools) - 
http://individuals.interactivebrokers.com/en/p.php?f=programInterface&amp;ib_entity=llc

MB Trading - heard it was a decent broker, don&#039;t know much about it. http://www.mbtrading.com/

Good rates for trading are $0.01/share (low volume) and $0.005/share (mid-high volume). Most use smart routing to ECNs and market makers (whoever has best price), for liquid instruments execution isn&#039;t really a deciding factor. Just make sure your automated trading strategy has a failsafe in case of a market crash (good money management strategy should mitigate the risks).&lt;br&gt;&lt;b&gt;References : &lt;/b&gt;&lt;br&gt;</description>
		<content:encoded><![CDATA[<p>For index funds, currency pairs, futures or commodities, it tends to be a specialized program designed with that security in mind since each has their own behaviors.</p>
<p>Automated trading systems can be designed to trade many stocks at a time, but keep in mind that the complexity of such systems increases dramatically because money/risk management change. Normally there is a filtering mechanism for the strategy and then a money management technique based on the timeframe (daytrade, swing trade, long term).</p>
<p>The short of it: You can define a rule for anything you can get a reliable data feed on.</p>
<p>I recommend to join or visit this site as it contains a wealth of information (got to sort through people&#8217;s opinions though, use your own judgement; it has a list of brokers with reviews also): <a href="http://www.elitetrader.com/" rel="nofollow">http://www.elitetrader.com/</a></p>
<p>Often, proprietary brokers will put hard limits to protect from programming errors, for example: limit the dollar amount of all assets long or short to $100000. This can help when the system first goes live, especially if high margin is used. I recommend avoiding proprietary firms unless you have experience with them, as they can be risky if you don&#8217;t know what you&#8217;re getting into; I will not be listing any here.</p>
<p>If you are programming the system, then it&#8217;s useful to have an API available. I personally use Visual Basic 6 and the broker&#8217;s API for simplicity. Some brokers have their own scripting languages or interfaces.</p>
<p>These are some brokers that I&#8217;ve seen, but I haven&#8217;t dont live trading in awhile so I cannot guarantee any specific results:</p>
<p>TradeStation (when you want all the bells and whistles, must have $30000, but well-supported scripting language and good interface) &#8211; <a href="http://www.tradestation.com/automated_trading/howitworks.shtm" rel="nofollow">http://www.tradestation.com/automated_trading/howitworks.shtm</a></p>
<p>Interactive Brokers (simpler platform, similar rates, splits forex spread and commission which makes it more transparent; API for Visual Basic 6; has lots of user-created 3rd party automation or assisted trading tools) &#8211;<br />
<a href="http://individuals.interactivebrokers.com/en/p.php?f=programInterface&amp;ib_entity=llc" rel="nofollow">http://individuals.interactivebrokers.com/en/p.php?f=programInterface&amp;ib_entity=llc</a></p>
<p>MB Trading &#8211; heard it was a decent broker, don&#8217;t know much about it. <a href="http://www.mbtrading.com/" rel="nofollow">http://www.mbtrading.com/</a></p>
<p>Good rates for trading are $0.01/share (low volume) and $0.005/share (mid-high volume). Most use smart routing to ECNs and market makers (whoever has best price), for liquid instruments execution isn&#8217;t really a deciding factor. Just make sure your automated trading strategy has a failsafe in case of a market crash (good money management strategy should mitigate the risks).<br /><b>References : </b></p>
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