Optiver has recruited Lawrence Tanzman from Citadel as the Dutch market maker expands into handling options trades sent by retail brokerages, a business long dominated by the Ken Griffin-owned firm https://t.co/4hSYdbFPpT ...

Onyx, the energy and commodities market maker, has opened an office in New York and hired a veteran to lead it as part of its continued expansion https://t.co/kJtN6vRZaG ...

Electronic market maker Optiver is joining the London Metal Exchange, offering a vote of confidence in the 148-year-old exchange’s efforts to modernize in the wake of the 2022 nickel crisis https://t.co/LTKwbqCleT ...