Grayscale Bitcoin Miners ETF (MNRS) is an exchange-traded fund that provides targeted exposure to publicly listed companies engaged in the global Bitcoin mining industry and related ecosystem, tracking the performance, before fees and expenses, of the Indxx Bitcoin Miners Index. The ETF invests at least 80% of its net assets in equity securities and depositary receipts of index constituents, including Bitcoin miners generating revenue from mining activities, mining-related hardware, software, and services; top holdings as of December 2025 include IREN Ltd (17.21%), BitMine Immersion Technologies Inc (10.25%), MARA Holdings Inc (7.78%), Terawulf Inc (6.32%), Cipher Mining Inc (6.00%), Applied Digital Corp (5.53%), HUT 8 Corp (5.44%), Cleanspark Inc (4.82%), Core Scientific Inc (4.79%), and Bitfarms Ltd (4.42%), representing a diversified portfolio of 26 global holdings with a total expense ratio of 0.59%. Launched on January 30, 2025, and listed on NYSE Arca, MNRS operates as a passively managed, rules-based product designed to evolve with the Bitcoin mining sector, offering investors access to this critical component of the Bitcoin network without direct exposure to Bitcoin itself.
Grayscale Bitcoin Miners ETF represents the latest product from Grayscale Investments, a digital asset manager founded in 2013 and headquartered in Stamford, Connecticut, which pioneered crypto investment vehicles including the first publicly traded Bitcoin fund. The ETF's inception marks a major strategic expansion into Bitcoin mining-focused ETFs amid rising Bitcoin adoption and anticipated industry growth driven by higher revenues and margins from Bitcoin price appreciation. As a subsidiary of Digital Currency Group, Grayscale continues to target institutional and accredited investors through regulated products spanning spot ETFs and index-based funds across global markets.