Fidelity Investments has launched a retirement plan that allows direct investment in cryptocurrencies like Bitcoin, Ethereum, and Litecoin.Fidelity is responding to increasing client demand for tax-advantaged crypto investing in retirement plans.The company offers no-fee IRAs for investing in crypto, making it accessible for long-term investors.Fidelity continues to expand its crypto offerings, including filing for an ETF on Solana and exploring the issuance of a proprietary stablecoin.