I agree that Two Sigma, Jane Street, Renaissance, etc. are NOT Fintech. Fintech is a really large umbrella which seems to includes people like Paypal or Bloombe

I agree that Two Sigma, Jane Street, Renaissance, etc. are NOT Fintech. Fintech is a really large umbrella which seems to includes people like Paypal or Bloomberg and things like robotraders or companies that deal with some financial product. Hedge Funds / HFT / Algo traders can be really sophisticated with their technology, but I wouldn't call them "Fintech".