Flash Boys HP

Illustration: Glenn Harvey

The Big Take

Flash Boys Emerge From Shadows to Reorder Stock Trading

The new order is stirring concerns over transparency and liquidity in an already fragmented trading landscape.

The flash boys made famous by Michael Lewis were a secretive bunch. The high-frequency trading firms depicted in his 2014 bestseller worked almost unseen, leveraging their technical prowess to mint a fortune in the shadows between stock buyers and sellers.

Which is what makes Oscar van Schaijk’s current schedule such a surprise.