ARK 21Shares Bitcoin ETF (ARKB) lost $109.4 million on October 22, 2026, while Bitwise's BITB and Grayscale's GBTC lost $27 million and $30 million respectively

The first and largest cryptocurrency, spanning its price and adoption, mining, protocol politics, and its contested role as digital money and inflation hedge.

Price action and market structure across digital assets, including rallies and crashes, leverage and liquidations, and whether the four-year cycle still holds.

Exchange-traded funds that hold Bitcoin for stock-market investors, with their fund flows, competing issuers and regulatory approvals.