BlackRock’s iShares Bitcoin Trust has recorded $1.08 billion in net inflows over the past 20 trading sessions, according to the reported fund flow data, while Grayscale’s Bitcoin Trust posted a $254.7 million net outflow over the same period.

The reported 20-session inflow streak adds to IBIT’s position as one of the main entry points for U.S. investors seeking Bitcoin exposure through a regulated fund structure. The product is designed to track Bitcoin price movements without requiring investors to hold the asset directly, and its management fee is listed at 0.25%.

On September 3, IBIT posted a daily net inflow of $454 million, while all U.S. spot Bitcoin ETFs together saw $730.8 million in net inflows that day. The report also said the session when funds entered IBIT was the 7th, though it did not provide a full day-by-day breakdown for the entire 20-session period.

As of September 10, IBIT’s net assets stood at $60.5916 billion, according to the figures cited in the report. Arkham Intelligence data cited by the report said the fund logged continuous net inflows for six trading days starting August 25, with inflows exceeding $1.5 billion. The report also cited estimated IBIT holdings of about 785,900 BTC, while Bitbo listed 785,771.2 BTC on September 8.

The contrast with GBTC remains a notable part of the ETF flow picture. While IBIT has continued to attract capital, GBTC has seen net outflows, extending a pattern in which investors appear to favor lower-friction or lower-cost vehicles for Bitcoin exposure. The report frames that divergence as a sign that access through large ETF issuers is becoming more important in how capital enters the Bitcoin market.

Why It Matters

ETF flow data has become one of the clearest real-time indicators of how traditional market participants are gaining Bitcoin exposure. A sustained inflow streak into IBIT matters because it points to continuing demand for exchange-traded access rather than direct on-chain accumulation, reinforcing the role of listed products in shaping Bitcoin market structure.

The split between IBIT inflows and GBTC outflows also highlights how competition inside the spot ETF segment can redirect capital without requiring a broad change in overall market appetite. That makes issuer strength, fee structure, liquidity, and distribution reach increasingly important in determining where institutional and adviser-driven allocations go.