UBS trading desks, as well as order flow from broker-dealers, market makers and active traders (sometimes referred to as “HFT”), subject to certain crossing restrictions. UBS PIN in the US ("UBS PIN ...

Dark liquidity ... that are out of public view and could significantly influence market prices if executed on public ...

Jump Trading and Hudson River Trading. Perspective: The role of liquidity providers is essential to ETF products, as these so-called “market makers” would be responsible for creating and ...