Navigation and Service

Content

Stefan's Blog

Follow the blogs of our expert Stefan Schlamp, Head of Quantitative Analytics, about recent trends and developments in the market.

80 results
  1. Stefan's blog: The North Remembers

    Aug 4, 2025

    In what can only referred to as a diplomatic [body part] measuring contest between the EU and Switzerland, the EU did not extend the "recognition ... More

  2. Stefan's blog: Closing Auction Liquidity

    Jul 31, 2025

    If the market share of the closing auction increases, one would assume that the price impact of a comparable order should decrease. Reality is a ... More

  3. Stefan's blog: XOR Liquidity

    Jul 21, 2025

    In the 2010s we were trading an equity market making strategy which was connected to all European dark pools at the time (neither strategy nor ... More

  4. Stefan's blog: $ python bsd_trades.py -d 20250401 -D 20250630

    Jul 14, 2025

    It is that time of the year again to reveal the list of the largest and deepest trade of the previous quarter. More

  5. Stefan's blog: Deep Trades are Informed on Eurex, Uninformed on Xetra

    Jul 11, 2025

    Suppose you want to provide liquidity for a security but consider the spread too tight. You might then place orders away from the BBO and ... More

  6. Stefan's blog: Gini Decoupling

    Jul 1, 2025

    There has been an interesting development over the last two years. First, trading volumes have become more concentrated. Secondly, the level of ... More

  7. Stefan's blog: Cadence or Stride Length? - Stride Length!

    Jun 25, 2025

    To run faster you can increase your cadence and/or your stride length. Similarly, for one stock having a higher daily volume, this can be due to ... More

  8. Stefan's blog: Tragedy of the Commons - Price Formation Edition

    Jun 18, 2025

    Imagine Deutsche Bahn (or Amtrak, or National Rail, ...) was required to let competitors use their rail infrastructure for free. Competitors would ... More

  9. Stefan's blog: The HPT Triple is Complete

    Jun 10, 2025

    High-precision timestamp (HPT) files have been a staple for analyzing low-latency trading performance on Eurex and Xetra for years. The European ... More

  10. Stefan's blog: Private-First Latency Analysis

    Jun 4, 2025

    The CME operates on the private-first principle. The private fill messages to individual participants are sent before the trade update in the ... More

  •  …