Foreign exchange platform puts the brakes on high-frequency traders

EBS has changed its rules to discourage algobots.

EBS, a major interbank trading platform in in the foreign exchange market, is considering imposing a major change in the way it runs its market in order to discourage high-frequency trading from taking place.

EBS currently runs on the principle of "first in, first out" trading, where trades are dealt with in the exact order they are made. That is the way most people expect the market to work – but it also gives an advantage to those who can get their trades in quickest. That leads to the arms race that high-frequency trading has seen in the last few years, where traders pay to place their servers close to the exchange, to whittle off those last few microseconds.

Instead of this model, EBS is considering bundling together incoming trades and dealing with them in a random order. That way, every trade that came in in (for example) the tenth of a second between 12:00:00.0 and 12:00:00.1 would be grouped together and dealt in a random order, removing the advantage that the trader who got in at 12:00:00.01 would normally have.

Speaking to the FT, the chief executive of EBS explained why the company has made the decision:

The first twenty years of algorithmic trading have added great transparency and led to the compression of spreads – all great things. But there is a line beyond which marginal speed and smaller trade sizes add no value and actually harm the markets. At some point we, the public markets across asset classes, crossed that line.

The ‘first in, first out’ model sounds fair and plausible, but in modern public markets it implies ‘winner takes all’.

The classic example of how high(er)-frequency trading can have positive effects comes from the fact that the desire to shave seconds off the response time to financial information is the reason why the undersea cables linking London to New York are so high quality. Without that motivation to profit, the cables might not have been laid for decades after, and certainly wouldn't be as fast as they are now. (In fact, the USD/GBP exchange rate is still known as "cable" now, after the first transatlantic cable laid in 1858).

But as the speed of trades has increased ever higher, the side-benefits are shrinking. The difference in liquidity between a market where a tenth of a second and a thousandth of a second matters is minuscule; even if spreads might be a tiny bit tighter than they otherwise would be, no normal trader is helped by that "improvement".

So EBS's speed limit is a welcome step. By dealing with trades in a semi-random order, it removes the incentive to spend millions on shaving off the smallest fractions of time. Ironically, the companies which will benefit most in the short term are the high-frequency traders themselves, who already have the technology to trade speedily, and now don't need to worry about investing more on ever-diminishing returns. But eventually, more and more traders will match that capability, until the market becomes a level playing field again.

The other reason why traders – even high-speed ones – ought to thank EBS is that if the exchanges get HFT under control, then there's one less reason for governments to step in. Discouraging high-frequency trades is one of the strongest reasons for introducing a financial transaction tax. That hits everyone, not just the speedy traders.

A new data-centre in Manhattan. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Why Angela Merkel's comments about the UK and US shouldn't be given too much weight

The Chancellor's comments are aimed at a domestic and European audience, and she won't be abandoning Anglo-German relationships just yet.

Angela Merkel’s latest remarks do not seem well-judged but should not be given undue significance. Speaking as part of a rally in Munich for her sister party, the CSU, the German Chancellor claimed “we Europeans must really take our own fate into our hands”.

The comments should be read in the context of September's German elections and Merkel’s determination to restrain the fortune of her main political rival, Martin Schulz – obviously a strong Europhile and a committed Trump critic. Sigmar Gabriel - previously seen as a candidate to lead the left-wing SPD - has for some time been pressing for Germany and Europe to have “enough self-confidence” to stand up to Trump. He called for a “self-confident position, not just on behalf of us Germans but all Europeans”. Merkel is in part responding to this pressure.

Her words were well received by her audience. The beer hall crowd erupted into sustained applause. But taking an implicit pop at Donald Trump is hardly likely to be a divisive tactic at such a gathering. Criticising the UK post-Brexit and the US under Trump is the sort of virtue signalling guaranteed to ensure a good clap.

It’s not clear that the comments represent that much of a new departure, as she herself has since claimed. She said something similar earlier this year. In January, after the publication of Donald Trump’s interview with The Times and Bild, she said that “we Europeans have our fate in our own hands”.

At one level what Merkel said is something of a truism: in two year’s time Britain will no longer be directly deciding the fate of the EU. In future no British Prime Minister will attend the European Council, and British MEPs will leave the Parliament at the next round of European elections in 2019. Yet Merkel’s words “we Europeans”, conflate Europe and the EU, something she has previously rejected. Back in July last year, at a joint press conference with Theresa May, she said: “the UK after all remains part of Europe, if not of the Union”.

At the same press conference, Merkel also confirmed that the EU and the UK would need to continue to work together. At that time she even used the first person plural to include Britain, saying “we have certain missions also to fulfil with the rest of the world” – there the ‘we’ meant Britain and the EU, now the 'we' excludes Britain.

Her comments surely also mark a frustration born of difficulties at the G7 summit over climate change, but Britain and Germany agreed at the meeting in Sicily on the Paris Accord. More broadly, the next few months will be crucial for determining the future relationship between Britain and the EU. There will be many difficult negotiations ahead.

Merkel is widely expected to remain the German Chancellor after this autumn’s election. As the single most powerful individual in the EU27, she is the most crucial person in determining future relations between the UK and the EU. Indeed, to some extent, it was her intransigence during Cameron’s ‘renegotiation’ which precipitated Brexit itself. She also needs to watch with care growing irritation across the EU at the (perceived) extent of German influence and control over the institutions and direction of the European project. Recent reports in the Frankfurter Allgemeine Zeitung which suggested a Merkel plan for Jens Weidmann of the Bundesbank to succeed Mario Draghi at the ECB have not gone down well across southern Europe. For those critics, the hands controlling the fate of Europe are Merkel’s.

Brexit remains a crucial challenge for the EU. How the issue is handled will shape the future of the Union. Many across Europe’s capitals are worried that Brussels risks driving Britain further away than Brexit will require; they are worried lest the Channel becomes metaphorically wider and Britain turns its back on the continent. On the UK side, Theresa May has accepted the EU, and particularly Merkel’s, insistence, that there can be no cherry picking, and therefore she has committed to leaving the single market as well as the EU. May has offered a “deep and special” partnership and a comprehensive free trading arrangement. Merkel should welcome Britain’s clarity. She must work with new French President Emmanuel Macron and others to lead the EU towards a new relationship with Britain – a close partnership which protects free trade, security and the other forms of cooperation which benefit all Europeans.

Henry Newman is the director of Open Europe. He tweets @henrynewman.

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