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Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

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131–140 of 223 posts

Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#131

HFT / Fund guy here. This is marketing spiel. If you just want to trade on a bunch of exchanges so no information flows between them, you can easily (TM) write a program that either a) lines up the orders at each exchange to execute at a specific time or b) delays the orders from a central server by the line delay. So say NYC is 13ms from Chicago. You want to hit both at once. As long as you're not 13 ms late, nobody…

Does RenTech still have investors? I thought they worked for themselves now.

They do, the famous fund is Medallion, which is internal only. There's other funds that aren't quite as sexy.

Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#132
post #103
post #15

Earlier quoted context omitted.

It's worth nothing that eating into Renaissance's profits in this way is good for everyone else because it means that accurate prices are reaching the market faster.

You could say the same thing about insider trading. So, the argument that accurate prices reach the market faster is not, in and of itself, an argument that something is good.

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Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#133
post #127
post #76

This reminds me of how Google uses atomic clock and GPS for Spanner [1] Google: "“We can commit data at two different locations — say the West Coast [of the United States] and Europe — and still have some agreed upon ordering between them,” Fikes says, “So, if the West Coast write happens first and then the one in Europe happens, the whole system knows that — and there’s no possibility of them being viewed in a diffe…

It's also the method by which signals from radio telescopes thousands of miles apart have been correlated after the fact at a central location. This has been the case for a couple of decades now. For instance, at the VLBA: https://en.wikipedia.org/wiki/Very_Long_Baseline_Array

What does that have to do with transactions? Analyzing radio signals is simple compared to running transactions, since it is only a one-directional signal flow.

Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#134
post #76

This reminds me of how Google uses atomic clock and GPS for Spanner [1] Google: "“We can commit data at two different locations — say the West Coast [of the United States] and Europe — and still have some agreed upon ordering between them,” Fikes says, “So, if the West Coast write happens first and then the one in Europe happens, the whole system knows that — and there’s no possibility of them being viewed in a diffe…

> and still have some agreed upon ordering between them Funnily, that works only if the two observers are in rest relative to each other, as relativity theory tells us. :-)

In this case both observers are continuously accelerating towards the center of the Earth (because the Earth is spinning). So the theory actually doesn't work!

Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#135
post #88

Earlier quoted context omitted.

Except that the state of art in HFT is sub-microseconds "London-based trading technology company Fixnetix said Tuesday it has the world’s fastest trading application, a microchip that prepares a trade in 740 billionths of a second, or nanoseconds." (WSJ, 2011) http://blogs.wsj.com/marketbeat/2011/06/14/wall-streets-need... http://stackoverflow.com/questions/17256040/how-fast-is-stat...

Isn't the relevant delay rather that of a signal traveling from one exchange to another?

That's one of the factors. Generally the optimisations that happen first are on network path length / network equipment induced delays, as there's relatively cheap and quick gains to be made. The bigger delays are invariably in your applications that are processing or generating data, which are more costly to optimise.

That said, the Fixnetix stuff is only talking about one aspect of what's involved, and about as representative of reality as Cisco's published WARP speed figures in their Nexus 3500 range.

Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#136

Earlier quoted context omitted.

Does RenTech still have investors? I thought they worked for themselves now.

They do, the famous fund is Medallion, which is internal only. There's other funds that aren't quite as sexy.

Oh, I see. Why are they split up into multiple funds?

Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#137
post #76

This reminds me of how Google uses atomic clock and GPS for Spanner [1] Google: "“We can commit data at two different locations — say the West Coast [of the United States] and Europe — and still have some agreed upon ordering between them,” Fikes says, “So, if the West Coast write happens first and then the one in Europe happens, the whole system knows that — and there’s no possibility of them being viewed in a diffe…

I came here to say exactly the same about Spanner

Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#138

Earlier quoted context omitted.

They do, the famous fund is Medallion, which is internal only. There's other funds that aren't quite as sexy.

Oh, I see. Why are they split up into multiple funds?

Funds can be split up for any number of reasons including investor specific requirements including leverage limits or volatility limits, etc. Also, more likely the case, their medallion fund strategies probably have some kind of capacity limit. I.e. Can't put too much capital into it before they start to suffer.

Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#139
post #102

Earlier quoted context omitted.

> Buy same security faster than rest of buy order can be processed. How? You can't because your competition is already resting orders there (from potentially weeks ago) and any order you put in there will be behind your competitors no matter how fast you are. What does happen is that you all are resting orders up and down the order book. When a big order takes out several levels of your orders, you race as fast as po…

Would eliminating the sub-penny rule remove the need to use this strategy? If there were basically an infinite number of points orders could be resting, you could just get in an epsilon above or below some other fund's order to get ahead in the queue?

Chris Stucchio ('yummyfajitas) has argued precisely that. I tend to agree with him but can't say for sure.

Re: Hedge Fund Wants to Use Atomic Clocks to Beat High-Speed Traders

#140
post #101

Earlier quoted context omitted.

What you are describing is an acausal (i.e. physically impossible, since cause effect happens before cause) version of demand anticipation - changing prices in response to market demand. It's impossible because the HFT will only know your order has reached exchange A after exchange A has told him about it. Obviously A can't tell him about it until after your order has arrived. Front running is a strategy where your b…

Did you not read my example? We are talking here about multiple, physically separated exchanges. Example: Vanguard sends a buy order of 1000 shares of AAPL to exchange A. Some HFT firm sees that order on exchange A and knows that it will also be placed on exchange B, and was surely broadcast from Vanguard's trading floor at the exact same moment as the order to exchange A. However, the HFT firm also knows that Vangua…

A) 'yummyfajitas has worked in hft and written several blog posts on the subject.

B) he is reacting specifically to the term front-running which has a known technical definition in trading and cannot happen the way you describe (I've said elsewhere I believe the term has been appropriated and redefined and am not willing to fight that anymore, maybe he is).

C) it's funny that you mention Vanguard as they have been pretty adamant that HFT market makers of the form that use latency are save them money.

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