| Sep. 18, 2020 | Michael Golding, Head of Trading and Rutger Brinkhuis, Head of Trading, Optiver US LLC |
| Sep. 18, 2020 | Joanna Mallers, Secretary, FIA Principal Traders Group |
| Sep. 18, 2020 | Erik Swanson, CEO, Simplex Trading, LLC |
| Sep. 17, 2020 | Steve Crutchfield, Head of Market Structure, Chicago Trading Company |
