子壇子弟從事Quant職業的，大多數在Prop shops做QT或QD，QD就是SWE，QT做market making

做market making，需要大volume才容易賺錢。

在Prop shops，quant traders 通過”做莊”賺錢，就是同時向買方和賣方報出價格，當然是兩個價格，高的是買方價，低的是賣方價，quant traders 賺價格之差。

 

https://stokex.com/news/a-beginners-guide-to-market-making-what-is-it-and-why-is-it-a-cornerstone-of-modern-finance/#:~:text=The%20Future%20of%20Market%20Making,more%20quickly%20to%20changing%20conditions.