TLDR
Major buyers of Bitcoin (BTC) this week were MicroStrategy (MSTR) and large whale wallets, while US spot ETFs showed net outflows and acted as sellers.
- MicroStrategy acquired 1,229 BTC for $108.8 million between Dec 2228, lifting holdings to 672,497 BTC per a market update.
- Whale cohorts holding 1,00010,000 BTC continued sustained accumulation, according to Glassnodes cohort score in recent coverage on whales buying.
- US spot Bitcoin ETFs saw net outflows this week, weighing on price and demand as reported.
Deep Dive
1. MicroStrategy Buys
MicroStrategy disclosed a weekly purchase of 1,229 BTC for $108.8 million, funded via at?the?market stock sales. The transaction window was Dec 2228 and brings total holdings to 672,497 BTC at an average cost of $74,997 per BTC per the notice.
- Context: This continues Decembers pattern of corporate treasury accumulation following larger early?month buys summarized here.
- Additional buyer: Japan?listed Metaplanet resumed treasury operations, announcing 4,279 BTC purchased in Q4, disclosed on Dec 30 %%CKPROTECTED0%%.
Corporate treasuries remain a steady bid during drawdowns, signaling longer?horizon accumulation rather than short?term trading.
2. Whale Buying
Large holders with 1,00010,000 BTC showed the strongest Accumulation Trend Score (near 1), indicating sustained net buying by whales in the $80,000 range per cohort data coverage.
- Reports highlight a divergence: whales buying while smaller cohorts distribute, consistent with elevated fear readings and year?end volatility.
- Parallel commentary tracks increased long positioning among whales as volatility compresses in recent analysis.
Large wallets are adding into weakness, often a stabilizing force and a signal of conviction, but it can take time to translate into price.
3. ETF Flows
US spot Bitcoin ETFs showed net outflows this week, dampening demand and keeping BTC range?bound below $90,000 amid thin holiday liquidity as reported.
- Regional divergence: recent commentary noted Asia as a net buyer while US products saw net redemptions late December in a flows roundup.
- Outlook: Analysts frame ETF demand cycles as key for 2026, with access broadening across advisory platforms potentially flipping flows back positive later per an institutional outlook.
Near?term price is sensitive to ETF flows. A turn back to net inflows could amplify upside; continued outflows keep rallies fragile.
Conclusion
This weeks BTC buying was led by corporate treasuries (MicroStrategy) and whale cohorts, while US spot ETFs were net sellers. If ETF flows stabilize or turn positive, whale and treasury accumulation could get more traction; if outflows persist, expect choppy ranges even as long?term buyers keep adding.
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