Bizarre robot traders

There are two obvious possibilities:

a) These are patterns that arise as a result of software that is being tested. Not likely but very possible.

b) They are trying to play time/price priority, but compromise between leaving an order in the market too long and all the risk it entails, and the advantage gotten from getting a fill there on sweeps of the book.

I have read extensively on this and no one has hit on two other possibilites.

a) These huge data bursts are meant to overwhelm other computers so that the barriers to entry are kept high from would be competitors, or alternatively, scared off.

b) It could be a form of messaging system that subtly messages/advertises to other firms. It could be either honest, or illegal but impossible to prove collusion (in whatever the message encodes). The data itself becomes a program.

But by far the most likely scenario is that these are programs that serve as "market data ping times". Imagine that you needed to check the health of the matching engines, etc. You pull your quotes if say the engines start to lag by a certain amount. You write a simple pattern, timestamp, pump that into the market, and then have the program recognize the pattern coming out the market data, timestamp again, and then do the subtraction. You now have something far more reliable then ping to see how busy the market is, end-to-end. This could even be used as a trading system.
 
Quote from nitro:
b) It could be a form of messaging system that subtly messages/advertises to other firms. It could be either honest, or illegal but impossible to prove collusion (in whatever the message encodes). The data itself becomes a program. [/B]

That is a very interesting theory!
 
Quote from mindtrade:

That is a very interesting theory!
I modified the post. The last sentence in my post above is by far the most likely. What you are referring to is me being paranoid. Not to be ruled out, but very very unlikely.
 
nitro the only post that is worth the time it takes to read it.

glad that fraud Winston hasn't polluted the thread yet.
 
Quote from nitro:

I modified the post. The last sentence in my post above is by far the most likely. What you are referring to is me being paranoid. Not to be ruled out, but very very unlikely.

just because you're paranoid, it doesn't meant they're not out to ping you.




You are posting too soon after your last post. Try again in a few minutes. Is ET every going to get rid of this absurd 2 minute post lag? Have better things to do than wait for the server to wipe its butt.
 
Quote from tradingstation0:

A bizarre pattern has been found by a trading firm in the markets, and seems to serve no purpose.

I am the only to think that High Frequency Trading is very damaging to our economies and effectively transform the markets into a giant poker table where only card counters make money?

What about a new law where a huge tax is imposed if you do not keep your stocks for at least a week?

If you don't trade superfast the algos don't affect you.
 
Quote from stock777:

You are posting too soon after your last post. Try again in a few minutes. Is ET every going to get rid of this absurd 2 minute post lag? Have better things to do than wait for the server to wipe its butt.

If this posting rule is absurd, isn't limiting the speed at which a computer trades absurd as well? It seems like you favor any rule that makes only your life easier/better/more convenient/more profitable.
 
Quote from nitro:

I modified the post. The last sentence in my post above is by far the most likely. What you are referring to is me being paranoid. Not to be ruled out, but very very unlikely.
5k quotes a second to test for ping times on multiple issues market wide? don't think so.
 
Quote from propseeker:

5k quotes a second to test for ping times on multiple issues market wide? don't think so.
You are not thinking.
 
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