Parisian Family Office, CEO. Began Wall Street, 1982. Founded investment firm, CHIPPEWA PARTNERS, Native American Advisors. Active Trader. White Earth Chippewa Tribal member. Was NYSE/FINRA arb. Conservative, raised on Great Plains reservations. Pureblood, clot-shot free. In a world elevated on a dopamine binge, this is his take! Written from MT Ghost Ranch on the Yellowstone River, TN farm Pamelot or San Jose del Cabo, Mexico, CASA TULE'. Always been, will always be, an optimist.
Tuesday, September 20, 2011
Fantaseconds in time............
Millions of traders depend on the accuracy of exchange timestamps -- especially after bad timestamps were found to be a key factor in the disastrous market crash known as the flash crash of May 2010. We are confident the exchange timestamp problem has been completely addressed by now: the SEC would have made sure of it. It's not like adding accurate timestamps is rocket science, or even considered a difficult problem. Based on recent marketing materials, the exchanges are practically experts on measuring time. And with hundreds of millions in annual data feed subscriptions paid by the same subscribers expecting quotes with accurate timestamps, there is no shortage of funds to make it happen.
So we can be certain the exchange timestamps were accurate, which means that HFT has truly entered the era of the fantasecond.
But let us suppose for a moment that in reality, quotes became queued (delayed) and were timestamped after leaving this queue. After detailed analysis of the UQDF data feed (see chart below) that transmits this information to traders, we find that the traffic rate for both the total of all output lines and specifically multicast line #6 which carries YHOO, were both well below peak rates. So it doesn't appear there were any capacity problems which have always been an excellent indication of feed delay.
This raises a few thorny questions.
Does this mean there are far more delays than we previously thought? Is there a delay every time we see an explosion of quotes in one stock? Because that sort of thing happens. All the time.
Regulation NMS is pretty clear that direct exchange feeds are prohibited from having a speed advantage over the UQDF data feed. UQDF computes the NBBO after all. So how does one ensure trade-through price protection if the price being protected hasn't even occurred yet? The NBBO lies at the heart of Regulation NMS (Reg. NMS) and is the key concept that assures investors are getting the best price when buying or selling stocks.
Maybe it would be better to just fantasize about fantaseconds after all.