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FEATURE


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the shape of the liquidity mirage. “A lot of these algorithmically-driven execution systems generate a lot of orders in the same areas. Te liquidity mirage applies to any institution that does not understand that when they make the same price available on multiple venues, they create the potential to be traded against, in a much larger way than originally intended. Tat is why I need to have faster algorithmic ability – because if my price is traded against, I can adjust my positions and prices accordingly,” notes Heidingsfeld.


Tis is not to say that the order-driven market described above and created by the new participants in the FX market will ever exceed the quote-driven market operated by the major FX market-making banks. But it is indicative of the trend for trading practices and models to be imported from one asset class to another. One such trend is the growing penchant among traders for multi-asset trading and including FX within these strategies.


Heidingsfeld does not see this trend as having a major impact on the FX market. “It is good to have a multi-asset approach to viewing P&L and managing risk but, in terms of trading, I think most participants will continue to position themselves in what they’re good at,” says Heidingsfeld. “So I don’t think liquidity management will become more holistic, it will become more specialised. While the larger players may be able to be all things to all people, their smaller counterparties will be driven towards specific liquidity providers. I think the FX market is big enough to cater to all of these different approaches – quote- driven or price- driven; single-asset class or multi-asset class – without affecting the price dynamics. Te most important thing is that liquidity begets liquidity.”


Convergence


According to Carl Martin, group technology director at Eurobase International the big challenge in liquidity management revolves around the blurred boundaries between different participants and what used to clearly constitute the buy-side and the sell-side. “Previously in FX the buy-side would try to get the best price and hit it while the sell-side would just aim to have a competitive price but now things are becoming much more convergent, liquidity is more dispersed and the trading relationship between buy and sell-side is more circular. Te best bid and offer is still important but it is also becoming important to protect your liquidity providers.”


54 | april 2011 e-FOREX


As a wide range of participants enter the FX market, there are far more trading strategies and objectives at play, says Martin. “Some may be taking a long view of the market, whereas others may be looking to get out as soon as they can, and others may be simply looking to balance their books. A liquidity management system has to be able to interpret all of this and to put all of this liquidity into context and to do it all on an automated basis.”


Martin refers to this as the ‘liquidity switch’, where feeds are constantly analysed and liquidity providers are judged against one another. Ultimately FX firms have to make a judgement call or an educated guess but through the use of systems and mathematics it is possible to reduce the amount of guesswork needed.


Te need for liquidity management systems to keep up with the different strategies and behaviour is indicative


Carl Martin “Te aggressive, alpha generating algorithms


are out and the intelligent, cognisant algorithms are in because they are able to absorb much more information aside from simply price.”


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