Kraken is a US-based cryptocurrency exchange where users can buy, sell, and trade a range of assets with relatively low fees. Customers can also earn rewards by staking supported coins. Established in 2011, Kraken was among the early platforms to introduce spot trading, derivatives, and index-related products. Today, it provides many offerings, including spot trading, margin trading, futures, indices, staking, OTC, and an upcoming non-fungible token (NFT) marketplace. The exchange supports over 8 million traders and institutional clients, and is backed by Digital Currency Group, Blockchain Capital, Tribe Capital, Hummingbird Ventures, and others.