TLDR
- BlackRock’s IBIT recorded about $1.08 billion in net inflows over the past 20 days.
- GBTC posted roughly $254.7 million in outflows during the same period.
- IBIT holds about 785,000 BTC and manages more than $60 billion in assets.
- IBIT charges a 0.25% annual fee, compared with GBTC’s 1.5% fee.
- US spot Bitcoin ETFs collectively hold more than 1.28 million BTC.
- Bitcoin remains near $77,500 after failing to hold above the $78,000 level.
BlackRock’s iShares Bitcoin Trust continues to gain investor demand while Grayscale’s Bitcoin Trust records steady withdrawals. The split has widened as investors compare fees, scale, and access to spot Bitcoin exposure.
Over the past 20 days, BlackRock’s IBIT attracted about $1.08 billion in net inflows, based on Arkham Intelligence data. GBTC lost about $254.7 million during the same period, extending the gap between the two largest Bitcoin ETFs. The contrast has grown as Bitcoin ETF competition shifts toward products with lower costs and institutional access.
BLACKROCK HAS BOUGHT $1 BILLION OF BITCOIN
BlackRock's IBIT has bought $1.08B of BTC over the past 20 days, with inflows on 7 of those days.
Grayscale's GBTC net sold $254.7M of BTC in the same period. BlackRock bought while Grayscale sold. pic.twitter.com/bgE1wlPKb8
— Arkham (@arkham) September 15, 2026
BlackRock IBIT Extends Its Lead
IBIT recorded several strong sessions during the period. It drew $454 million on September 3 and another $277.6 million on August 27 as Bitcoin recovered from a volatile August. Those inflows lifted IBIT’s holdings to about 785,000 BTC, while assets under management moved above $60 billion. GBTC now holds about 130,000 BTC, with assets near $10 billion.
Cost remains a major difference between the two funds. IBIT charges a 0.25% annual fee, while GBTC charges 1.5% for similar spot Bitcoin exposure. A $10 million position would cost about $25,000 per year in IBIT fees and $150,000 in GBTC fees. That gap has given large investors a clear cost reason to favor lower-fee products. Grayscale launched its Bitcoin Mini Trust, but GBTC has continued recording withdrawals through 2026 despite broader recovery.
US spot Bitcoin ETFs now hold more than 1.28 million BTC, equal to about 6% of Bitcoin’s total supply. The wider category attracted more than $3 billion during the recent inflow wave. BlackRock has captured much of that demand through its large distribution network. The firm manages about $10 trillion globally and reaches financial advisers, wealth managers, and institutional investors across major markets.
Bitcoin Price Holds Inside a Tight Range
Bitcoin traded near $77,500 after failing to hold above $78,000 and sustain moves toward $80,000. Michaël van de Poppe said the market may need a deeper sweep before another move higher.
Unfortunately, #Bitcoin isn't holding $78,000.
This means that we might be looking at a deeper sweep before we continue to go up (although we're stuck in the range).
It starts to look a lot like the price action we've seen at the end of August.
Chop, chop, sweep of the low… pic.twitter.com/kmSn5wwOC9
— Michaël van de Poppe (@CryptoMichNL) September 15, 2026
His chart placed resistance near $80,000 and support between roughly $74,000 and $77,500. He compared the setup with late August, when Bitcoin price moved sideways, swept a low, and later recovered.
The current structure leaves traders focused on the $77,000 to $78,000 area. A deeper move toward the mid-$70,000s could test support before buyers attempt another push toward the top of the range.
For now, ETF flows continue to favor BlackRock while Bitcoin remains in consolidation. Investors will watch whether lower fees keep directing capital toward IBIT and whether Bitcoin can reclaim $78,000 before testing $80,000 again.
