Such competitions might have two goals in mind: recruiting and signal diversification. The recruiting angle is obvious.
Any alpha that is not fully correlated to existing alpha is worth its weight in gold for an organization with the size, sophistication and complexity of JS. That's part of the reason why efforts such as 2Sigma's Alpha Studio exist: https://alphastudio.com/
Any alpha that is not fully correlated to existing alpha is worth its weight in gold for an organization with the size, sophistication and complexity of JS. That's part of the reason why efforts such as 2Sigma's Alpha Studio exist: https://alphastudio.com/