Horizon Kinetics is a New York-based active investment manager and research firm with approximately $9.6B in AUM. The firm manages money across ETFs, mutual funds, private funds, and SMAs for high-net-worth individuals, family offices, and institutional clients. Horizon Kinetics' defining characteristic is its investment philosophy: a fundamental, value-oriented, contrarian approach with long holding periods, low portfolio turnover, and heavy concentration in highest-conviction ideas. The firm focuses on spin-offs, owner-operated businesses, and companies with hidden assets — deliberately avoiding large-cap index constituents in favor of less widely followed opportunities. SMAs are the largest product channel at ~$4.1B in AUM, while ETFs are the fastest-growing, led by the Inflation Beneficiaries ETF (INFL) at ~$1.4B. The firm earns revenue through management fees on all products and episodic performance fees on private funds. Horizon Kinetics has meaningful operating leverage, as incremental AUM and strong performance drop largely to the bottom line. The firm is pursuing two growth tracks: launching new ETFs with direct, word-of-mouth distribution to avoid platform fees charged by traditional brokerages, and expanding into cryptocurrency management through externally managed vehicles — including Consensus Mining, a publicly traded crypto miner that Horizon manages for a fee. Management views crypto asset management as a way to grow fee-paying AUM without the marketing overhead of traditional asset management. Horizon Kinetics carries no third-party debt and holds significant proprietary capital alongside client assets.