Bitcoin Halving Eve: Miners Sell vs. ETF Buying, Key Levels to Watch

Halving Expectations Heat Up: Miner Reserves vs. ETF Flows

As the fourth Bitcoin halving approaches, the market is once again focusing on subtle shifts in supply and demand dynamics. On one hand, on-chain data shows a continuous decline in miner wallet balances, with some mining firms revealing in earnings reports that they have locked in profits through hedging or direct sales. On the other hand, spot ETFs have seen significant cumulative net inflows since their launch, with institutional allocation demand viewed as a core force counterbalancing selling pressure. This quiet battle on the eve of the halving is brewing a directional choice around key price levels.

Miner Selling Wave: Historical Patterns and Short-Term Pressure

According to on-chain analytics platforms like CryptoQuant, Bitcoin reserves in miner addresses have shown a stepwise decline in the months before the halving, a pattern similar to the 2016 and 2020 cycles. Miners typically increase selling before the halving to raise funds for equipment upgrades or to cope with the upcoming block reward reduction. Glassnode data shows that the volume of transfers from miners to exchanges has seen a pulse-like increase recently, but has not yet reached historical extremes. Analysts point out that the current proportion of total miner reserves has fallen to multi-year lows, and some leading mining firms (such as Marathon Digital and Riot Platforms) have explicitly stated in quarterly reports that they have locked in future production prices through derivatives contracts, which to some extent alleviates spot selling pressure.

Institutional Accumulation: ETF Flows as a Key Variable

In stark contrast to miner selling, spot Bitcoin ETFs, approved in early 2024, have continued to attract traditional capital. According to Bloomberg Intelligence, as of Q1 2025, cumulative net inflows into U.S. spot Bitcoin ETFs have exceeded tens of billions of dollars, with BlackRock's IBIT and Fidelity's FBTC dominating. Institutional buying is seen as a crucial buffer against miner selling. However, recent ETF flows have been volatile, with alternating weekly net outflows and inflows, reflecting market divergence on post-halving price direction. Some analysts believe that if ETF inflows can cover miners' daily production (currently around 900 BTC/day), upward resistance is minimal; conversely, if inflows slow, miner selling could trigger a short-term pullback.

Key Levels: The Battlefield for Bulls and Bears

From a technical perspective, Bitcoin entered a high-level consolidation range after breaking $100,000 in 2024. The current price is repeatedly oscillating between $90,000 and $110,000, with the market generally viewing $100,000 as a psychological level, while $95,000 has dense trading volume support. On-chain data (such as UTXO age distribution) shows that a large number of short-term holders have cost bases concentrated between $98,000 and $102,000, meaning that if the price falls below this area, stop-loss orders could be triggered. Conversely, if supply reduction post-halving combines with continued ETF inflows, a breakout above $110,000 would open upside potential. In the derivatives market, implied volatility of options has risen significantly around the halving date, indicating traders expect sharp moves.

Post-Halving Supply-Demand Rebalancing

The halving will reduce daily new Bitcoin production from about 900 BTC to 450 BTC, a substantial annualized reduction in new supply at current prices. This structural change is viewed by bulls as a long-term positive, but in the short term, miners may be forced to sell more inventory to maintain operations due to halved revenue. However, some mining firms have already deployed efficient mining machines and leveraged low electricity costs to reduce expenses, thereby lessening dependence on market prices. Meanwhile, institutional investors' entry logic is more based on asset allocation and inflation hedging rather than short-term price fluctuations, providing a more stable buying base for the market.

Conclusion: Battle Unresolved, Volatility May Intensify

The tug-of-war between miner selling and institutional accumulation on the eve of Bitcoin's halving is essentially a rebalancing of old and new supply-demand forces. Miners' behavior is constrained by operating costs and capital expenditures, while institutional decisions reflect broader macro liquidity and risk appetite. In the short term, the market may experience sharp swings due to capital flow changes, but in the medium to long term, the supply contraction from the halving and the demand expansion from ETFs could push Bitcoin into a new price discovery phase. Investors should closely monitor on-chain miner reserve changes, daily ETF flows, and macro interest rate policies to navigate potential extreme market conditions.