Re: Compressed/Encrypted Voice using Modems

> From: Eric Hughes <hughes@soda.berkeley.edu>
> 
> >By the way, just to bring this back to crypto, everyone should be aware
> >that not only did Claude Shannon establish modern information theory,
> >he also wrote a seminal paper that established much of modern cryptography.
> 
> Not only that, he was single handedly responsible for the 15 minute
> delay rule in reporting stock market transactions.  Evidently he
> applied information-theoretic techniques to the data and was able to
> make a load of money at it.  I have no references on this, and would
> love to see some.

I don't believe this. You can buy data feeds that give you instant market
data, rather than 15 minute delayed information. I've worked for
operations like Morgan Stanley's Analytic Proprietary Trading Group,
and although I've seen some neat tricks applied to market data, I've
never heard tell of Shannon developing any, nor is there any delay
in the data such groups use for trading.

Perry

In <9302091839.AA09736@maggie.shearson.com>, Perry E. Metzger writes:
|> > From: Eric Hughes <hughes@soda.berkeley.edu>
[...]
|> > Not only that, he was single handedly responsible for the 15 minute
|> > delay rule in reporting stock market transactions.  Evidently he
|> > applied information-theoretic techniques to the data and was able to
|> > make a load of money at it.  I have no references on this, and would
|> > love to see some.
|> 
|> I don't believe this. You can buy data feeds that give you instant market
|> data, rather than 15 minute delayed information. I've worked for
|> operations like Morgan Stanley's Analytic Proprietary Trading Group,
|> and although I've seen some neat tricks applied to market data, I've
|> never heard tell of Shannon developing any, nor is there any delay
|> in the data such groups use for trading.
|> 
|> Perry

In particular, Compuserve subscribers get 15-minute old stock
quotes for free, and pay extra to get closer to real-time.

To quote an advert from Open Systems (Propaganda) Today:
"            SuperHackers
D.E. Shaw & Co., a small, ... algorithmic trading firm,
seeks brilliant, world-class software professionals to
help create Wall Street's future. ..."

This may be drifting off-topic, unless someone sees a way to finance
anarcho-ventures with high-tech arbitrage. I suppose Perry would be in
the middle of any such cabal -- or maybe he isn't saying ;-)
        ^
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------/---- cp@jido.b11.ingr.com (Craig Presson)
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