Silvergate Capital plays an important role in the cryptocurrency space, by financing the expansion activities of Bitcoin miners and avoiding the need to raise equity finance.I also investigate why, amid all the enthusiasm around cryptos and upbeat third-quarter financial results, the company's shares actually dipped on October 19.Looking for potential competitors, this relatively small crypto bank looks strong with a growing moat and multiple avenues for growth including stablecoins.Credit risks remain low, but exposure to Bitcoin implies volatility.Valuations are low when compared with a peer by around 33%, and based on Bitcoin spot trading volumes, its SEN platform should see a surge in activity in the current quarter signifying upbeat earnings.