Slashdot Mirror
Barbarians At the Gateways
CowboyRobot writes "Former high-frequency trader Jacob Loveless gives an in-depth description of the math and technology involved in HFT. From the article: 'The first step in HFT is to place the systems where the exchanges are. Light passing through fiber takes 49 microseconds to travel 10,000 meters, and that's all the time available in many cases. In New York, there are at least six data centers you need to collocate in to be competitive in equities. In other assets (foreign exchange, for example), you need only one or two in New York, but you also need one in London and probably one in Chicago. The problem of collocation seems straightforward: 1. Contact data center. 2. Negotiate contract. 3. Profit. The details, however, are where the first systems problem arises. The real estate is extremely expensive, and the cost of power is an ever-crushing force on the bottom line. A 17.3-kilowatt cabinet will run $14,000 per month. Assuming a modest HFT draw of 750 watts per server, 17 kilowatts can be taken by 23 servers. It's also important to ensure you get the right collocation. In many markets, the length of the cable within the same building is a competitive advantage. Some facilities such as the Mahwah, New Jersey, NYSE (New York Stock Exchange) data center have rolls of fiber so that every cage has exactly the same length of fiber running to the exchange cages.'"
But writing an article on a topic this boring and tricking me into reading it by sneaking in the word "barbarians" should be a crime.
Very informative, enjoyed it a lot.
The signal was taking too long to cross your lawn. So we foreclosed your house. Bye.
rewriting history since 2109
a HFT system will notice the spread, but from one at 11 and sell it to the other at 10 and capture the difference for themselves.
I would not recommend buying high and selling low as a long-term strategy.
a HFT system will notice the spread, but from one at 11 and sell it to the other at 10 and capture the difference for themselves.
So I guess they make it up on volume?