A bitcoin whale sold 2,000 BTC worth US$215 million on September 1, 2025 converting the funds into 48,942 ETH within four hours, according to blockchain analytics firm Lookonchain.

The same wallet sold 4,000 BTC for 96,859 ETH over 12 hours on August 31,  2025.

The wallet, which reactivated in August after seven years, has shifted nearly US$4 billion into ether so far, Lookonchain reported.

The rotation from bitcoin to ether by large holders aligns with August fund flows, where spot bitcoin ETFs faced US$751 million in net outflows, and Ethereum ETFs saw US$3.9 billion in net inflows, per SoSoValue data.

🔗 Source: The Block

🧠 Food for thought

1️⃣ Large holders historically stabilize markets during downturns

This massive Bitcoin-to-Ethereum rotation follows a well-documented pattern where cryptocurrency whales act as market stabilizers rather than disruptors.

Chainalysis research on Bitcoin’s 32 largest non-exchange wallets found that during major price declines, trading whales were net purchasers of Bitcoin, countering the common narrative that they drive volatility 2.

The study revealed that only about one-third of whale wallets are active traders, with the majority being long-term holders who tend to buy during market dips rather than sell during peaks.

This whale’s methodical approach, executing large transactions over specific timeframes rather than dumping assets, aligns with the stabilizing behavior patterns identified in the research.

The whale’s seven-year dormancy period before re-emerging also fits the profile of long-term holders who make strategic moves based on market cycles rather than short-term speculation.

2️⃣ Institutional money flows mirror individual whale behavior

The whale’s Bitcoin-to-Ethereum shift reflects broader institutional investment patterns visible in exchange-traded fund data.

August saw Bitcoin ETFs record $751 million in net outflows while Ethereum ETFs attracted $3.87 billion in monthly net inflows, according to SoSoValue data cited in the original report 1.

This parallel movement between individual whale transactions and institutional ETF flows suggests that both sophisticated individual and institutional investors are making similar strategic decisions based on the same market fundamentals.