The data here is only for large companies. I happen to know what a couple of medium-sized quantitative trading firms (Jane Street and DE Shaw) pay interns, and

The data here is only for large companies. I happen to know what a couple of medium-sized quantitative trading firms (Jane Street and DE Shaw) pay interns, and it's meaningfully higher (10–12k/month), although it might even out if you consider the housing allowance Facebook et al provide.