Cathie Wood

Wood serves as ARK’s CEO, or chief executive officer, and CIO, or chief investment officer. Her company biography gives her ultimate responsibility for investment decisions. That helps explain why her name is associated with the firm’s approach. It does not mean she personally built every published model. Her decision-making authority concerns the investment firm, not Bitcoin’s network rules. Looking at the team’s specific work alongside its well-known leader gives the reader a clearer picture. [1]

Consider ARK’s April 24, 2025 article on Bitcoin’s price in 2030, written by David Puell. It presents bear, base and bull cases: less favorable, middle and more favorable sets of assumptions. These are not three promised outcomes. Each shows where the calculation leads under particular conditions. Both date and author matter: the document records ARK’s methodology at that time, not necessarily its latest estimate today or a personal statement by Wood. [2]

The model uses potential market sizes and estimates the share Bitcoin might capture. For illustration, imagine a market worth 100 units. Assuming a 2% share contributes 2 units to the calculation. Those numbers do not show that someone has already invested 2 units. This is our illustrative example, not a measurement of actual demand. Changing an assumption changes a scenario, not a past transaction. Useful scrutiny begins by asking why that market share might materialize. [2]

Alongside its official total-supply model, the article explores active supply, an estimate of coins available to move. This calculation accounts for lost or long-held coins. Dividing the same estimated value among fewer coins produces a higher price per coin. That does not demonstrate fresh capital inflows: the denominator, the number we divide by, has changed. Nor does long inactivity itself prove a lost key. A holder may still be able to spend coins that have not moved for years. [2]

ARKB is an exchange-traded product offering investment exposure to Bitcoin: its share value aims to follow Bitcoin’s performance after expenses. Its June 2026 report names 21Shares US LLC as sponsor, the company managing the trust, and ARK as Sub-Adviser, assisting with marketing. A trust is a legal arrangement holding assets for its shareholders. The product is passive, rather than a portfolio in which Wood continually chooses Bitcoin purchases and sales based on her price outlook. [3]

Imagine buying an ARKB share on an exchange. You hold a share in the product, but receive no private key to a particular UTXO, an unspent Bitcoin transaction output representing a specific amount. The report says the trust does not redeem individual shares; creation and redemption use large groups called baskets. Buying a share therefore gives no automatic right to withdraw Bitcoin into your own wallet. Selling the share on an exchange and sending a Bitcoin payment are separate operations with different conditions. [3]

Here, an index is a reference price calculated from selected markets. It helps value the product’s assets; it is not the price at which its shares happen to trade. The August 27, 2026 prospectus supplement documents ARKB’s change from CME CF Bitcoin Reference Rate – New York Variant to FTSE Bitcoin Index. The calculation method and rules for selecting source markets changed. Comparing earlier and later results requires knowing about that change. An undated description of the old benchmark could lead readers to the wrong conclusion. [4]

ARK’s research can be read as a set of questions about future demand for Bitcoin. The firm itself acknowledges model uncertainty and incentives to show favorable results, and distinguishes Bitcoin forecasts from its portfolio returns. Assessing actual performance therefore requires the history of a specific product over the same period, with expenses treated consistently. An interesting outlook can prompt further thought. Realized results show how the investment a person actually held performed. [2]