This paper introduces a new trading strategy in which the trader plays a role as a dealer in the market. The strategy provides an algorithm calculating the optimal bid and ask price to be placed in accordance with maximizing the utility function of the trader. Unlike the traditional trading strategies such as buy low and sell high, this strategy gives a new view that trading can be made by continuously placing bid and ask price calculated by maximizing the trader's utility, holding a dynamic inventory of the asset traded and cumulates the profit. Just as the dealer does. Actually this is one of the main trading strategy for high frequency trading.
http://www.finance-concepts.com/ ... requencyTrading.pdf
i believe this is the paper posted, in case you wanna download directly from the source.
it's a paper by Marco, who is definitely an expert in this field.
that said, most HFT market makers use way more than this inventory constraint for trading.
second, who knows what people actually use in HFT. This paper is only an intro otherwise the author will not bother to write it down if it is useless although in practice it is far beyond this paper says.
just share a resource. You can also share the paper you think better which is widely applied in the industry.
/*
PLEASE READ THIS IMPORTANT DISCLAIMER
This code is distributed AS IS, and is
not subject to any warranty, performance
guarantees, etc.
It is intended strictly for educational
purposes to illustrate the concepts
presented in Irene Aldridge's book:
"High-Frequency Trading: A Practical Guide
to Algorithmic Strategies and Trading Systems".
Any commercial distribution of the code is
strictly prohibited.
*/