Bitcoin ETFs Record Monthly Net Sell-Off of 71,600 BTC, Creating $4.4 Billion Supply Overhang
Alina Collins
Spot bitcoin ETFs sold a net 71,600 BTC this month — over $4 billion — setting a single-month redemption record; combined with daily mining output, the market faces a $4.4 billion supply overhang that caps any rally's staying power.
How much did the ETFs actually sell?
Glassnode data shows spot ETFs net-sold 71,600 BTC this month, worth over $4 billion — a single-month redemption record.
This means → the market's largest institutional buyer flipped into its largest seller this month.
In plain terms = ETFs were built as "the channel that buys bitcoin for retail." That channel is now pumping in reverse.
Who is buying and who is selling?
BlackRock's IBIT logged a single-day net outflow of $300.4 million, the biggest source of bleeding.
ARK 21Shares (ARKB) and Grayscale (GBTC) drew roughly $50 million and $35 million in net inflows — together, nowhere near enough to offset IBIT's exit.
Corporate treasuries — digital-asset reserve entities — net-bought only 7,500 BTC over the same period, a drop in the bucket against 71,600 sold by ETFs.
Is the biggest corporate holder selling too?
Strategy (MSTR) authorized the sale of up to $1.25 billion in bitcoin, mainly to build a $2.55 billion cash reserve covering preferred-stock dividends and interest.
This reflects a major shift from the founder's long-held "never sell bitcoin" stance.
In plain terms = even the most committed hoarder is cashing out to service debt — a sign the cost of holding has become unsustainable.
How bad is the supply overhang?
ETF net sales plus daily new mining output leave the market with a surplus of roughly 77,000 BTC — about $4.4 billion.
Analysts call this a supply overhang: more coins awaiting absorption than buyers are willing to take.
This means → until fund flows reverse, any price bounce lacks substantive bid support.
What is the next thing to watch?
Bitcoin recently steadied near $60,000, down almost 20% over the past month.
Total spot-ETF net assets sit at roughly $73.3 billion, with a net-asset ratio of 6.05%.
This means → there is one key validation point: whether ETF fund flows can flip from negative to positive. If they cannot, the current price has no institutional-grade floor beneath it.
Content is for reference only, not financial advice.