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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Commons Confidential: Dave's picnic with Dacre

Revenge is a dish best served cold from a wicker hamper.

Sulking David Cameron can’t forgive the Daily Mail editor, Paul Dacre, for his role in his downfall. The unrelenting hostility of the self-appointed voice of Middle England to the Remain cause felt pivotal to the defeat. So, what a glorious coincidence it was that they found themselves picnicking a couple of motors apart before England beat Scotland at Twickenham. My snout recalled Cameron studiously peering in the opposite direction. On Dacre’s face was the smile of an assassin. Revenge is a dish best served cold from a wicker hamper.

The good news is that since Jeremy Corbyn let Theresa May off the Budget hook at Prime Minister’s Questions, most of his MPs no longer hate him. The bad news is that many now openly express their pity. It is whispered that Corbyn’s office made it clear that he didn’t wish to sit next to Tony Blair at the unveiling of the Iraq and Afghanistan war memorial in London. His desire for distance was probably reciprocated, as Comrade Corbyn wanted Brigadier Blair to be charged with war crimes. Fighting old battles is easier than beating the Tories.

Brexit is a ticket to travel. The Independent Parliamentary Standards Authority is lifting its three-trip cap on funded journeys to Europe for MPs. The idea of paying for as many cross-Channel visits as a politician can enjoy reminds me of Denis MacShane. Under the old limits, he ended up in the clink for fiddling accounts to fund his Continental missionary work. If the new rule was applied retrospectively, perhaps the former Labour minister should be entitled to get his seat back and compensation?

The word in Ukip is that Paul Nuttall, OBE VC KG – the ridiculed former Premier League professional footballer and England 1966 World Cup winner – has cold feet after his Stoke mauling about standing in a by-election in Leigh (assuming that Andy Burnham is elected mayor of Greater Manchester in May). The electorate already knows his Walter Mitty act too well.

A senior Labour MP, who demanded anonymity, revealed that she had received a letter after Leicester’s Keith Vaz paid men to entertain him. Vaz had posed as Jim the washing machine man. Why, asked the complainant, wasn’t this second job listed in the register of members’ interests? She’s avoiding writing a reply.

Years ago, this column unearthed and ridiculed the early journalism of George Osborne, who must be the least qualified newspaper editor in history. The cabinet lackey Ben “Selwyn” Gummer’s feeble intervention in the Osborne debate has put him on our radar. We are now watching him and will be reporting back. My snouts are already unearthing interesting information.

Kevin Maguire is the associate editor (politics) of the Daily Mirror

Kevin Maguire is Associate Editor (Politics) on the Daily Mirror and author of our Commons Confidential column on the high politics and low life in Westminster. An award-winning journalist, he is in frequent demand on television and radio and co-authored a book on great parliamentary scandals. He was formerly Chief Reporter on the Guardian and Labour Correspondent on the Daily Telegraph.

This article first appeared in the 23 March 2017 issue of the New Statesman, Trump's permanent revolution