Not necessarily, as GPL3 didn't close the so-called "ASP loophole". Since Goldman Sachs probably wasn't distributing any HFT applications, but just selling access to it or using it completely internally, they aren't required to make their modifications public. See http://stackoverflow.com/questions/2127246/difference-betwee... about the AGPL license which addresses the 'application service provider' issue.
Comments
Not necessarily, as GPL3 didn't close the so-called "ASP loophole". Since Goldman Sachs probably wasn't distributing any HFT applications, but just selling access to it or using it completely internally, they aren't required to make their modifications public. See http://stackoverflow.com/questions/2127246/difference-betwee... about the AGPL license which addresses the 'application service provider' issue.