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How hard it is to write a program that lists all the words in the pdf document by their frequency in the text?
It took me 5 years to have a fully HFT trading system. When I say fully I'm talking about data feeds connecting to the exchanges (most sensitive part), risk management, oms, sro, etc It's a black box residing in a colocated server. It's a very challenging process. You must cut processing cycles everywhere. Forget about classical software engineering books. You won't find any of this in books (at least I didn't) On top of that you can add so many other parts like monitoring systems, analitics, trading GUI,position monitoring systems, etc If you want to learn more in detail, I've written several articles about this journey in my linkedin profile. Good luck
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The only thing I can tell you that was a bit difficult to implement was liquidity. If I remember correctly it was in 2007 and this is when the liquidity and index tracking systems started to mature. And this was not an easy task. When we started the development there was no such thing as ETF's. So we had no clue what we were doing. This is where we found a solution. We found many ways how to reduce the number of trading processes. And it was a hard one, and we didn't get it completely right. But it worked pretty well for us. One of the best tools was a trading strategy called SST. This tool has all the options trading algorithms together in one spot, and it allows you to trade on these solutions. This tool allows you to trade strategies with various parameters and this method is perfect for us. Because all the.