The Bitcoin Rich List of 2026: Arkham's Rankings, the Strategy vs. BlackRock Debate, and a $5 Billion ETF Exodus

2. Binance — The exchange leads Arkham's overall crypto holdings ranking with ~$136 billion in on-chain assets (not solely Bitcoin), making it the single largest crypto entity by total value.

3. BlackRock (via IBIT) — Approximately 764,000 BTC in Arkham's June 18, 2026 ranking.

4. Strategy (formerly MicroStrategy) — The company reports ~815,061 BTC in its corporate filings after an April 2026 purchase of 34,164 BTC for $2.54 billion. However, Arkham's on-chain tracking shows a lower figure — roughly 764,000 BTC or less.

Other major holders include Coinbase, other ETF issuers such as Fidelity, governments (U.S., China, El Salvador), and various institutional custodians. The top ten entities collectively control over 25% of the total Bitcoin supply.

The Methodological Debate: On-Chain vs. Reported Holdings

The ranking has sparked significant controversy — and confusion — because of how it handles holdings that are not fully visible on-chain.

Strategy (formerly MicroStrategy): The company's public 8-K filings claim ~815,061 BTC as of April 2026 . Arkham's on-chain analysis, however, shows a meaningfully lower figure — roughly 764,000 BTC or less in its June 2026 ranking . The gap arises because Arkham only counts wallets it can confidently attribute to Strategy on-chain. The company's reported total includes BTC held across custodial arrangements and wallets that Arkham either cannot see or cannot definitively link. In January 2025, Arkham claimed to have identified 96% of MicroStrategy's then-stated BTC . The remaining ~4% — and any subsequent purchases — may still be held in unlabeled wallets or omnibus custodial accounts. In fact, approximately 184,000 BTC of Strategy's holdings are custodied by Fidelity Digital, which uses a pooled structure that makes attribution harder .

BlackRock's IBIT: BlackRock's iShares Bitcoin Trust holds Bitcoin primarily through Coinbase Custody in a pooled omnibus structure. Not all of those coins are labeled on-chain as belonging to IBIT, meaning Arkham's estimate (~764,000 BTC) may undercount the ETF's actual holdings . The ranking has fluctuated over time: in April 2026, Strategy overtook IBIT's ~798,000 BTC after a major purchase , but Arkham's on-chain view sometimes shows BlackRock ahead of Strategy or vice versa depending on wallet attribution methodology .

Core tension: On-chain rankings capture wallets that can be algorithmically or manually attributed to an entity. This is inherently incomplete. Public company filings (Strategy's 8-Ks, IBIT's prospectus) reflect total BTC owned or custodied, which can be higher but is not always verifiable on-chain. The gap between these two data sources means neither is definitively "right" — they measure different things. Arkham itself notes on its entity page for Strategy that the displayed figure is lower than the $56 billion valuation listed elsewhere because it has only identified and verified 83% of Strategy's on-chain BTC at the time .

U.S. Spot Bitcoin ETF Flow Patterns (Mid-June 2026)

While the holder ranking debate continues, U.S. spot Bitcoin ETFs experienced their most severe sustained outflow period since launching in January 2024.

• May 15 – June 3, 2026: 13 consecutive days of net outflows totaling approximately $4.4 billion .

• Week ending June 9, 2026: $1.72 billion in weekly net outflows — the largest single weekly exodus since the ETF market launched — led by BlackRock's IBIT at $1.34 billion in outflows alone .

• Early June: A historic $3.4 billion net outflow in a single week, the biggest withdrawal event in the product category's history .

• June 4: A brief $3 million net inflow, too small to break the broader trend .

• June 11: A $30.27 million net inflow — the first positive day in five sessions — driven entirely by IBIT after a preceding four-day outflow streak of over $400 million .

• June 15–16, 2026: Still negative overall. June 16 saw net outflows of -$37.1 million, with IBIT recording +$79.6 million in inflows but being outweighed by outflows from GBTC (-$119.3M), FBTC (-$4.2M), and others .

Summary: From May 15 onward, U.S. spot Bitcoin ETFs shed nearly $5 billion in cumulative net outflows, with only a handful of isolated inflow days, the largest single outflow week ever recorded, and IBIT (typically the strongest performer) seeing its first major sustained redemptions .