The asset manager disclosed the fee for its iShares Bitcoin Trust on Monday. In comparison, Valkyrie Investments and Fidelity are charging fees of 0.80% and 0.39%, respectively, for their planned spot bitcoin ETFs. The bitcoin ETF race has heated up with more than a dozen participants, including crypto natives such as Grayscale and traditional finance heavyweights including BlackRock, vying for a slice of the market share.