Jeffs' Brands launches $75 million cryptocurrency management plan On August 14th, US listed company Jeffs' Brands (NASDAQ: JFBR) announced the launch of a $75 million cryptocurrency fund management plan. The program is managed by Quantum Crypto, an affiliate of Israeli cryptocurrency company Tectona Ltd. It covers the management of five major cryptocurrencies, including Bitcoin, and provides trading, staking, and other services.