Miners Are Dumping Record Bitcoin Into the Strongest ETF Week Since April
MARA and Riot moved hundreds of BTC to institutional venues last week while miners overall sold a record 32,000 BTC in Q1. Whales and ETFs are absorbing it. Someone is on the wrong side.
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Launch Free Terminal →Late Thursday, MARA deposited 200 BTC to NYDIG and Riot Platforms moved another 381 BTC, worth about $24.5 million, to the same institutional trading and custody venue within the same window. Exchange-bound miner coins are potential sell supply, and this is not an isolated event: miners disposed of a record 32,000 BTC during the first quarter of 2026, and the deposits keep coming with Bitcoin pinned near $64,000.
On the other side of the book, wallets holding between 10 and 10,000 BTC have added more than 20,000 BTC since July 29, about $1.2 billion at current prices, according to Santiment. And US spot Bitcoin ETFs just recorded $754.69 million in weekly net inflows, their strongest week since April. Supply from operators, demand from allocators, price going nowhere. That standoff is the whole Bitcoin market right now.
Why Miners Are Selling Into Weakness
Miner distribution at cycle lows is usually forced, not tactical. MARA still holds more than $2.3 billion in Bitcoin on its balance sheet, but it reported over $600 million in second-quarter losses. When operating costs run ahead of block rewards at $64,000, treasuries get tapped regardless of conviction.
The company has also been engineering around outright sales: MARA pledged 18,750 BTC, roughly $1.2 billion, as collateral for $600 million in financing. Borrowing against coins instead of selling them preserves upside but adds a new tail risk to the market, because collateralized BTC becomes forced supply if price falls far enough to trigger margin calls.
Either way, the miner cohort has flipped from the passive holders of 2024 and 2025 to an active source of exchange inflow. The Q1 record of 32,000 BTC sold is the cleanest evidence that this is structural, not noise.
The Demand Side Is Absorbing, For Now
June was the worst month in spot Bitcoin ETF history, with $4.06 billion in outflows. The recovery since has been steady rather than explosive: last week's $754.69 million was the best print in four months, and flows have strung together green sessions through early August.
Add the whale bid. The 20,000 BTC accumulated since July 29 by mid-size whale cohorts continues the pattern from the June low, when large wallets absorbed selling straight through the capitulation. Historically, whale accumulation into miner and mandate-driven distribution has marked the terminal zone of drawdowns, because it is the mechanism by which supply moves from forced sellers to holders with no reason to sell.
The absorption is working, barely. Bitcoin has held the $64,000 area through the miner deposits, the CLARITY Act uncertainty and the roughly $120 million Coldcard-related theft that rattled sentiment last week. Holding is not rallying, but given the supply hitting the tape, it is not nothing.
The Map Below and Above Price
Glassnode's UTXO Realized Price Distribution explains why this range is so sticky. Only about 0.72% of supply last moved near $64,373, a relatively thin band of potential breakeven sellers directly overhead. The heavy cost-basis clusters sit below: roughly 2.09% of supply near $61,849 and 2.13% near $60,587.
Translated: the resistance above is light, and the support below is thick. If ETF demand and whale absorption keep outpacing miner distribution, the path through $66,000 to $67,000 is not heavily defended, and $68,000 opens up. If the absorption fails, the $61,800 and $60,600 bands are where the market has repeatedly proven willing to buy.
Reading the Standoff in Real Time
This is a flow battle, and flow battles show up in orderflow before they show up in price. Watch CVD around the $64,000 pivot for whether aggressive sellers are being absorbed by passive bids, the classic signature of accumulation under distribution. Watch open interest and funding for whether the range break, when it comes, is spot-led or leverage-led, because spot-led breaks from this structure travel further.
On Buildix the BTC deep view at buildix.trade/pair/BTC plots CVD, OBI and the liquidation heatmap on one chart, so miner-driven sell pressure hitting whale bids is visible as it happens rather than in next week's on-chain reports.
Record miner selling and the best ETF week since April cannot both keep their pace. Whichever side blinks first sets the direction for the rest of the quarter.