WEBB Traders

WEBB Traders quotes more than a million instruments from an Amsterdam office of modest size, a scope that only makes sense for a firm built on cross-asset arbitrage. It began in 2009 as a pure cash-equity arbitrage house and expanded outward from there into derivatives, FX, and lately crypto.

Founders Marco van den Berg and Thijs Booij run it on the firm's own capital under both AFM and Dutch central bank oversight, a fuller regulatory footprint than most Dutch market makers carry. Memberships span the major European exchanges, with a Paris desk reaching US and Brazilian products and a growing US presence. The strategy stays systematic and short-horizon, quoting two sides and carrying little overnight, arbitrage rather than direction.