Stone Ridge Holdings is a New York-based alternative asset manager and financial-services investment firm deploying capital into true alternatives and differentiated strategies across reinsurance, energy, opportunistic investing, alternative lending, single-family rentals, multi-strategy, art and bitcoin. It invests in the United States and is most relevant for finance, fintech, blockchain, insurance, energy, real estate and art-related opportunities where long-term, balance-sheet-aligned strategic capital is useful; the firm has acted as a lead investor in some transactions.