TLDR
Big buyers of Ethereum (ETH) this week were large whale wallets and BitMine Immersion Technologies. Spot ETH ETFs did not show net accumulation.
- Corporate buyer: BitMine added about 98,852 ETH and now holds over 4 million ETH (~3.37% of supply) per a press update.
- Whales: on?chain trackers report whales bought roughly 220,000 ETH (~$660M) over the week per a market recap.
- ETFs: ETH ETF AUM fell about 2.13% during 2228 Dec (UTC) based on tool output, indicating net outflows or price?driven AUM declines.
Deep Dive
1. Corporate Treasury Accumulation
BitMine Immersion Technologies continued aggressive treasury adds, purchasing ~98,852 ETH this week and lifting total holdings above 4 million ETH (~3.37% of circulating supply). See the BitMine update.
- Coverage noted recent discrete buys (for example ~13,410 ETH) and a sustained accumulation pace over December, reinforcing long?term positioning per a follow?up report.
A single corporate treasury removing large ETH supply reinforces the tight float narrative and can reduce sell?side liquidity in dips.
2. Whale Wallet Buildup
On?chain watchers highlighted heavy whale activity. Aggregated whale buying is estimated near 220,000 ETH (~$660M) for the week per a market recap.
- A tracked entity dubbed the 66k ETH Borrow Whale added 40,975 ETH in one day, and has accumulated over 569,000 ETH since early November per a driver piece.
- Multiple independent alerts cited single?wallet buys in the $16M range, illustrating concentrated accumulation (example post here).
When large wallets buy into weakness, it often signals longer?horizon conviction. However, some flows use leverage; reversals can amplify drawdowns.
3. ETFs Did Not Accumulate
Spot ETH ETFs showed weaker demand this week. ETH ETF AUM declined ~2.13% over 2228 Dec (UTC) based on tool output. Commentary also noted the 30?day moving average for BTC/ETH ETF net flows has been negative since early November, consistent with waning institutional flows in December (see the overview note here).
- Macro?style coverage framed persistent ETF outflows amid thin holiday liquidity and risk?off positioning (for example the context piece here).
Institutional ETFs were net sellers or saw price?driven AUM compression, so this weeks net accumulation came from whales and treasuries rather than ETF buyers.
Conclusion
Accumulation in ETH this week was led by whale wallets and BitMines treasury adds, while spot ETFs were a drag. If whale and corporate buying persists while ETF flows remain soft, liquidity could tighten on dips and set up sharper moves once demand broadens.
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