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Twin 22-year-old UW-Madison grads lead a growing startup that sells data tracking corporate jets, politicians’ stock trades

A small Madison startup launched only two years ago to provide free alternative data for investors says it now has 340,000 registered users.

Twin brothers James and Chris Kardatzke debuted Quiver Quantitative in February 2020 while they were students at University of Wisconsin-Madison studying finance, economics, and statistics. They graduated that year and gave their full attention to running the business which now has six full-time employees, with plans to hire a few more soon.