Jane Street taken legal action against Douglas Schadewald and Daniel Spottiswood.

Both are former employees of Millennium Management

They alleged for stealing a highly valuable and secret option trading strategy.

They also alleged for using it for their new positions at Millennium.

It was thought to be one of Jane Street's most effective strategy in option trading. During a court hearing, lawyers inadvertently revealed the strategy.

Jane Street advised to keep the strategy confidential. But defence layer revelled the strategy.

Jane Street emphasized that the strategy was more than just about the country.

It was built upon years of effort and findings by their algorithmic team.

The judge denied Jane Street’s request for an order barring Millennium and the two traders from using the strategy.

Instead, the firm could seek compensation if it could demonstrate harm. The case is scheduled for trial in July.