Andy Mukherjee, Columnist

Jane Street Should Put Its Secret India Sauce to the Test

Rival firm XTX says the New York trader’s strategies, which have landed it in trouble with the local regulator, are easy enough to measure. 

Stakes are high for Jane Street.

Photographer: Dhiraj Singh/Bloomberg

Jane Street Group has told its employees that the Indian regulator, which has accused it of market manipulation, is “fundamentally mistaken” about its trades. A math nerd in London thinks there may be a way to find out.

The Securities and Exchange Board of India sent ripples through trading rooms around the world last Friday when it temporarily banned Jane Street from the local market and froze 48.4 billion rupees ($565 million) in what it alleges to be unlawful gains.