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Apologies (INTJ TAA)

I am encountering a bizarre problem whereby Interactive Brokers has been canceling my market orders for $XLY because its price is “out of allowable price limits,” which confuses me, as it’s a market order.  All of the other instruments executed correctly.  Consequently, my system has tried to reissue the market order for $XLY the past two nights (and will do so again tonight), so I will probably have to open the order manually tomorrow.  Has anyone else encountered this problem?

How To Identify Algorithmic Trading Strategies

Mike from Quantstart posted a great, comprehensive look at the process and necessary steps in creating an algorithmic trading strategy.  It’s a long article, but it is a great survey of all of the tools you will need to get the job done (you can find many of the tools mentioned in the article, and even more on the Algorithmic Trading and Autotrading Universe page).  Just to summarize the main points, Mike points out that in order to maintain discipline and successfully trade (both on a discretionary and non-discretionary basis), one needs to know one’s own personal preferences.  If you create a strategy or use someone else’s, and it doesn’t match your own preferences, you will be tempted to intervene and override the trading rules set forth by the strategy, which will result in failure.

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