07.25.2016

How Rigged Are Stock Markets? Evidence from Microsecond Timestamps (by Robert P. Bartlett and Justin McCrary)

07.25.2016

How Rigged are Stock Markets? Evidence from Microsecond Timestamps


Robert P. Bartlett III


University of California, Berkeley – School of Law; University of California, Berkeley – Berkeley Center for Law, Business and the Economy

Justin McCrary


University of California, Berkeley; National Bureau of Economic Research (NBER)

July 20, 2016

Abstract:

We use new timestamp data from the two Securities Information Processors (SIPs) to examine SIP reporting latencies for quote and trade reports. Reporting latencies average 1.13 milliseconds for quotes and 22.84 milliseconds for trades. Despite these latencies, liquidity-taking orders gain on average $0.0003 per share when priced at the SIP-reported national best bid or offer (NBBO) rather than the NBBO calculated using exchanges’ direct data feeds. Trading surrounding SIP-priced trades shows little evidence that fast traders initiate these liquidity-taking orders to pick-off stale quotes. These findings contradict claims that fast traders systematically exploit traders who transact at the SIP NBBO.

Number of Pages in PDF File: 51

For the full report, please click here

Related articles

  1. With Dmitry Kay, Co-head of EM FX Trading, Europe, UBS

  2. Daily Email Feature

    An Uneven Playing Field

    Lynn Strongin Dodds looks at why independent research providers (IRP) have not gained the foothold expected af...

  3. The service covers over 2 million liquid and less liquid fixed income instruments.

  4. The US firm is expanding its European equity execution business.

  5. The bank allegedly routed orders to its SuperX ATS despite lower fill rates.