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.

Photo: Getty
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The vitriol aimed at Hillary Clinton shows the fragility of women's half-won freedom

The more I understand about the way the world treats women, the more I feel the terror of it coming for me.

I’m worried about my age. I’m 36. There’s a line between my eyebrows that’s been making itself known for about the last six years. Every time I see a picture of myself, I automatically seek out the crease. One nick of Botox could probably get rid of it. Has my skin lost its smoothness and glow?

My bathroom shelf has gone from “busy” to “cluttered” lately with things designed to plump, purify and resurface. It’s all very pleasant, but there’s something desperate I know at the bottom of it: I don’t want to look my age.

You might think that being a feminist would help when it comes to doing battle with the beauty myth, but I don’t know if it has. The more I understand about the way the world treats women – and especially older women – the more I feel the terror of it coming for me. Look at the reaction to Hillary Clinton’s book. Too soon. Can’t she go quietly. Why won’t she own her mistakes.

Well Bernie Sanders put a book out the week after the presidential election – an election Clinton has said Sanders did not fully back her in –  and no one said “too soon” about that. (Side note: when it comes to not owning mistakes, Sanders’s Our Revolution deserves a category all to itself, being as how the entire thing was written under the erroneous impression that Clinton, not Trump, would be president.) Al Gore parlayed his loss into a ceaseless tour of activism with An Inconvenient Truth, and everyone seems fine with that. John McCain – Christ, everyone loves John McCain now.

But Hillary? Something about Hillary just makes people want to tell her to STFU. As Mrs Merton might have asked: “What is it that repulses you so much about the first female candidate for US president?” Too emotional, too robotic, too radical, too conservative, too feminist, too patriarchal – Hillary has been called all these things, and all it really means is she’s too female.

How many women can dance on the head of pin? None, that’s the point: give them a millimetre of space to stand in and shake your head sadly as one by one they fall off. Oh dear. Not this woman. Maybe the next one.

It’s in that last bit that that confidence racket being worked on women really tells: maybe the next one. And maybe the next one could be you! If you do everything right, condemn all the mistakes of the women before you (and condemn the women themselves too), then maybe you’ll be the one standing tippy-toe on the miniscule territory that women are permitted. I’m angry with the men who engage in Clinton-bashing. With the women, it’s something else. Sadness. Pity, maybe. You think they’ll let it be you. You think you’ve found the Right Kind of Feminism. But you haven’t and you never will, because it doesn’t exist.

Still, who wouldn’t want to be the Right Kind of Feminist when there are so many ready lessons on what happens to the Wrong Kind of Feminist. The wrong kind of feminist, now, is the kind of feminist who thinks men have no right to lease women by the fuck (the “sex worker exclusionary radical feminist”, or SWERF) or the kind of feminist who thinks gender is a repressive social construct (rechristened the “trans exclusionary radical feminist”, or TERF).

Hillary Clinton, who has said that prostitution is “demeaning to women” – because it absolutely is demeaning to treat sexual access to women as a tradeable commodity – got attacked from the left as a SWERF. Her pre-election promises suggest that she would probably have continued the Obama administration’s sloppy reinterpretation of sex discrimination protections as gender identity protections, so not a TERF. Even so, one of the charges against her from those who considered her not radical enough was that she was a “rich, white, cis lady.” Linger over that. Savour its absurdity. Because what it means is: I won’t be excited about a woman presidential candidate who was born female.

This year was the 50th anniversary of the partial decriminalisation of homosexuality, and of the Abortion Act. One of these was met with seasons of celebratory programming; one, barely mentioned at all. (I took part in a radio documentary about “men’s emotional experiences of abortion”, where I made the apparently radical point that abortion is actually something that principally affects women.) No surprise that the landmark benefiting women was the one that got ignored. Because women don’t get to have history.

That urge to shuffle women off the stage – troublesome women, complicated women, brilliant women – means that female achievements are wiped of all significance as soon as they’re made. The second wave was “problematic”, so better not to expose yourself to Dworkin, Raymond, Lorde, Millett, the Combahee River Collective, Firestone or de Beauvoir (except for that one line that everyone misquotes as if it means that sex is of no significance). Call them SWERFs and TERFs and leave the books unread. Hillary Clinton “wasn’t perfect”, so don’t listen to anything she has to say based on her vast and unique experience of government and politics: just deride, deride, deride.

Maybe, if you’re a woman, you’ll be able to deride her hard enough to show you deserve what she didn’t. But you’ll still have feminine obsolescence yawning in your future. Even if you can’t admit it – because, as Katrine Marçal has pointed out in Who Cooked Adam Smith’s Dinner?, our entire economy is predicated on discounting women’s work – you’ll need the politics of women who analysed and understood their situation as women. You’ll still be a woman, like the women who came before us, to whom we owe the impossible debt of our half-won freedom.

In the summer of 2016, a radio interviewer asked me whether women should be grateful to Clinton. At the time, I said no: we should be respectful, but what I wanted was a future where women could take their place in the world for granted. What nonsense. We should be laying down armfuls of flowers for our foremothers every day.

Sarah Ditum is a journalist who writes regularly for the Guardian, New Statesman and others. Her website is here.