Coinbase CEO Brian Armstrong has reaffirmed his long-standing forecast that Bitcoin could reach $400,000 by 2030, describing the target as a hypothetical scenario built on Bitcoin’s historical four-year market cycles and the increasing integration of crypto into traditional finance.
Armstrong repeated the view during a September 19 interview with the Money Rehab Podcast, and comments published over the weekend show he has not moderated the call despite Bitcoin’s sharp price swings. He first made the prediction publicly in 2025 and stressed it remains his personal view rather than an official Coinbase price target.
The $400,000 level would represent a substantial climb from Bitcoin’s current mid-$80,000 range. Based on Bitcoin’s maximum supply of 21 million coins, it would imply a fully diluted valuation approaching $8.4 trillion, while the roughly 20 million coins expected to be circulating would give a market value of about $8 trillion.
Armstrong has tied the forecast to Bitcoin’s supply halvings, which cut new issuance approximately every four years. The most recent halving occurred in April 2024, reducing the block subsidy from 6.25 BTC to 3.125 BTC. He argued that if institutional and sovereign demand keeps expanding while incremental supply stays constrained, the imbalance could push prices significantly higher. At the same time, he cautioned that past performance cannot predict future prices and warned against claims of perfect certainty.
Beyond the price call, Coinbase has expanded its Bitcoin-backed lending products. Fixed-rate USDC loans use Bitcoin as collateral and settle through Base, Coinbase’s Ethereum-based layer-2 network, in connection with the Morpho Midnight decentralized lending protocol. Coinbase also offers Morpho Blue, which uses variable borrowing rates and had more than $1.4 billion in active loans and nearly $3 billion in collateral.
Meanwhile, U.S. spot Bitcoin ETFs recorded $2.4 billion in net inflows during the week ended September 25. The 12 ETFs tracked by SoSoValue collected $999 million on Monday, their strongest daily inflow since October 6, 2025. The weekly inflows pushed 2026 net flows to about $934.1 million. Since launch, the funds have recorded about $57.6 billion in net inflows, with combined net assets reaching about $108.4 billion.
