BlackRock reportedly buys $136.5M in Bitcoin as ETF net flows hold near $50B, with IBIT tracking BTC through market shares.
BlackRock’s Bitcoin buying is back in focus after a reported $136.5 million purchase through its ETF. That Martini Guy said institutions were still accumulating while price action remained volatile.
The update centers on the iShares Bitcoin Trust ETF, known as IBIT. The fund gives investors Bitcoin exposure through a listed market product.
IBIT seeks to track the price performance of Bitcoin. It also helps investors avoid the custody work of holding Bitcoin directly.
Meanwhile, the Bitcoin spot ETF flow chart still shows a strong long-term inflow trend. However, recent net-flow data shows that demand has cooled from earlier highs.
BlackRock ETF Buying Keeps Bitcoin in Focus
That Martini Guy said that BlackRock bought another $136.5 million worth of Bitcoin.
He described the move as institutional activity rather than retail demand. His comments came as traders watched Bitcoin ETF flows.
BlackRock just bought another $136.5 million worth of Bitcoin.
That’s not retail.
While most people are watching the price…
Institutions are still accumulating. pic.twitter.com/9yGI7VSda4
— That Martini Guy ₿ (@MartiniGuyYT) July 18, 2026
BlackRock’s IBIT remains one of the main products for regulated Bitcoin exposure. Investors can buy ETF shares through regular brokerage accounts.
This structure makes Bitcoin easier to access for traditional market analysts. The iShares Bitcoin Trust ETF seeks to reflect Bitcoin’s price performance.
It does not require investors to manage wallets or private keys. Therefore, the fund reduces operational barriers for Bitcoin exposure.
Cumulative ETF Flows Show Slower Momentum
The Bitcoin spot ETF flow chart shows strong long-term inflows since launch.
Positive cumulative flows rose steadily and later reached the $80 billion to $85 billion area. This shows that ETF demand has remained large over time.Bitcoin spot ETF cumulative flows stay near $80B, Farside data shows.
However, the green net-flow line has moved lower from its peak. It reached nearly $63 billion before falling toward $50 billion to $52 billion.
This suggests that net demand is still positive but weaker. The gray area below zero shows cumulative outflows near $28 billion.
These withdrawals partly offset new money entering Bitcoin ETF products. Even so, positive flow levels remain far above the outflow area.
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Key Flow Levels Shape Market View
The $50 billion area is now the main support zone for net cumulative flows. Holding this level would show that ETF demand remains stable.
A rebound from this area could improve the flow structure. A move above $55 billion would show stronger inflow momentum.
A recovery above $60 billion would bring the previous high near $63 billion back into focus. These levels may help traders track institutional demand.
If net flows fall below $50 billion, the next support area sits near $45 billion. A deeper decline could bring the $40 billion zone into focus.
For now, BlackRock’s reported buying keeps Bitcoin ETF flows central to market tracking.
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