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According to some estimates, even half of the trading volume in the American stock exchange is generated by computers. Specifically, computer programs that make trading decisions in a split of a second. They may buy stock to sell it a few milliseconds later. With very minimal profit, this process repeated thousands of times per day can make a solid return. How do such systems work? There are multiple strategies, but most of them require extremely fast algorithms running close to the physical stock exchange. The speed is crucial and that’s what makes HFT so interesting. A trading bot can easily read social media and within microseconds decide whether particular news is good or bad. That can lead to a stock going up or down. For example, a president tweets about a new special tax relief for the pharmaceutical industry. A computer program almost instantaneously buys some stocks from the pharma companies and sells them seconds later. Before other computers do the same. Human traders stand no chance.
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Jest to odcinek podkastu:
Around IT in 256 seconds
Podcast for developers, testers, SREs... and their managers. I explain complex and convoluted technologies in a clear way, avoiding buzzwords and hype. Never longer than 4 minutes and 16 seconds. Because software development does not require hours of lectures, dev advocates' slide decks and hand waving. For those of you, who want to combat FOMO, while brushing your teeth. 256 seconds is plenty of time. If I can't explain something within this time frame, it's either too complex, or I don't understand it myself.
By Tomasz Nurkiewicz. Java Champion, CTO, trainer, O'Reilly author, blogger
Kategorie:
Technologia
Technologia