October 2013: Proving the Worth of Marginal Gains
Anyone moderately interested in cycling has likely heard the term “marginal gains,” a catch-all phrase popularized by Sky Pro Cycling’s principal, David Brailsford. What he is driving at when he refers to marginal gains is the sports equivalent of the butterfly effect—a fascinating phenomenon I wrote about in my December 2012 editor’s letter.
While Brailsford was a competent cyclist during his mid-20s, spending time cutting his teeth in Belgium, it was only when he assumed control of the UK’s first ever Pro Tour squad that the true extent of his cycling and managerial expertise came to the fore. Brailsford’s fixation with mastering the variables under his control is hardly revolutionary—this approach has been at the core of all competent and successful coaching strategies since the origins of competitive sports—although he has taken it to an obsessive level, to the extent that even the smallest biomechanical, physiological and technological enhancements will be incorporated into his riders’ preparation, so long as they are legal, ethical and financial justifiable. And so, in addition to spending appreciable periods of time in wind tunnels fine-tuning positions, and lengthy training blocks in Tenerife incorporating the “live high, train low” principle as a way of legally optimizing riders’ hematocrit levels—the percentage of red blood cells to overall blood volume—team members now travel with their own duvets and pillows, mobile air-conditioning and ionization units, physiologists and sports psychologists, nutritionists, and chefs, to ensure that they are primed to do their jobs to the best of their abilities. And, consistent with the philosophy behind the butterfly effect, when these marginal gains accumulate, results can be influenced. After all, last Sunday’s elite men’s team time trial at the UCI Road Cycling Championships in Florence was won by the Belgian Omega Pharma Quickstep squad by less than a second from the Australian Orica Greenedge team—over a distance of 57 kilometers, a time difference of approximately 1/40th of 1 percent.
This obsession with marginal gains is relevant to today’s high-frequency trading (HFT) community, as firms do whatever is practical and financially feasible to minimize latency throughout their entire trading environment. And, in case you’re wondering whether the financial gain is worth the operational and infrastructural pain when it comes to eliminating latency, consider Spot Trading’s stance on the issue: “Latency is still very important—if I can get a one millisecond advantage, it’s probably still worth $100 million [per year],” explained Daniel Penley, trading system engineer at the Chicago-based HFT firm, when talking to Anthony Malakian for his feature, Zero Sum Game?, on page 30. One hundred million dollars per year—that’s proof enough for me.
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