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Stefan's blog

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

66 results
  1. Stefan's blog: 35% Market Orders

    Apr 29, 2025

    I am not a fan of market orders - this includes stop orders. Nobody would ever go to an auction (car, art, whatever) and keep bidding no matter what? More

  2. Stefan's blog: The Bund U-Churn

    Apr 23, 2025

    The average US share changes hands approximately once per year and less than that for the average German share. Futures play in a different league. More

  3. Stefan's blog: No Guts, No Glory - Biggest Trades 2025Q1

    Apr 15, 2025

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

  4. Stefan's blog: Battle for Pole - Episode 3

    Apr 7, 2025

    The truce that had lasted for 2-years has been broken. It started in April when the leader - without clear need - reduced his latency and extended ... More

  5. Stefan's blog: Shortwave Data Will Go the Way of the Dodo

    Apr 3, 2025

    Just like the first Chicago to New York microwave links came online just months after the Spread Network fiber connecting the two trading hubs ... More

  6. Stefan's blog: Birthday Problem - Nanosecond Edition

    Mar 24, 2025

    The classical birthday problem asks for the probability of two children in a class of x children having their birthdays on the same day. Given ... More

  7. Stefan's blog: Bullets Dodged, Bullets Caught

    Mar 17, 2025

    Suppose you have a resting order in the limit order book. Your fair value model suggests that you should pull the order. But the decision of ... More

  8. Stefan's blog: Closing Auction Market Share - The Long View

    Mar 10, 2025

    There have been some recent studies that highlighted the increasing market share of the closing auction. The data in these studies "only" went ... More

  9. Stefan's blog: Are Fill/Cancels to Blame?

    Mar 10, 2025

    This week I add another bucket: fill/cancels a/k/a late cancels. These are undesired fills - the participant had tried to cancel the order but by ... More

  10. Stefan's blog: Share Buyback Regs vs. Physics

    Feb 17, 2025

    The regulations for executing share buybacks are oddly specific. More

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