IBIT (IBIT.US) monopolizes 7.8% inflow: single-point dependency risk under the $63 billion US bond market

According to Woofun AI, the US Bitcoin ETF market is showing extreme single-point dependency characteristics. IBIT (IBIT.US), as the core product of BLK.US (BLK.US), occupies an absolute dominant position in the $63 billion market system.

Although there are more than ten competitors in the market, the high concentration of capital flows shows that investors prefer to choose products with the highest brand awareness, the greatest depth of transactions, and the ability to provide traditional portfolio services. This pattern not only reflects the current state of new demand entering the Bitcoin market, but also reveals the deep penetration of traditional financial logic into the field of crypto assets. The success of IBIT (IBIT.US) was not an accident, but the result of the combination of the global trading network behind it and limited access to the US market, making the fund a key force in the entire category in a short period of time.

In 14 trading days from August 17 to September 3, IBIT (IBIT.US) attracted $2,843 billion, accounting for 77.8% of the total asset inflows of the fund class of $3,655 billion.

This data fully reflects the new demand entering the Bitcoin market. To better understand the flow of funds, it is necessary to distinguish between the two interrelated markets associated with ETFs. During the trading session, investors will trade existing IBIT (IBIT.US) shares on the NASDAQ 100 index. Although the total number of shares and the amount of bitcoins held by the fund remains the same, the transaction volume in the secondary market may reach billions of dollars. When the transaction price of IBIT (IBIT.US) is higher than the actual value of Bitcoin corresponding to each share, arbitrage will prompt the relevant institutions to issue new shares; when the transaction price falls below this value, they will also redeem the shares, thus keeping the net value of the fund close to a reasonable level. Through daily capital flow data, we can roughly judge the expansion or contraction of the primary market — trading volume reflects the flow of shares among investors, and the net increase in shares indicates whether the fund continues to grow. On days when the market fluctuates a lot, a large number of share transactions may reflect differences among existing holders; while net inflows mean that new capital has entered the fund, thereby increasing the size of its Bitcoin holdings.

Data compiled by Woofun AI shows that this linkage mechanism between the primary and secondary markets enables IBIT (IBIT.US) to efficiently absorb large-scale capital while maintaining stable net worth.

BlackRock (BLK.US) is responsible for the design, operation and promotion of this product, while maintaining partnerships with various organizations and collecting fees from them. Its name will also appear on the product logo. In fact, it is the individuals and institutions that have placed orders that drive the price of Bitcoin, so the statement “BLK.US (BLK.US) bought Bitcoin” is actually just a simplified expression used to summarize thousands of independent transactions. Since financial advisors can incorporate IBIT (IBIT.US) into their portfolio models, companies can also hold the product through familiar escrow services, and retired investors can obtain Bitcoin investment opportunities without having to master wallet security knowledge or understand the exchange's operating procedures. These factors all give IBIT (IBIT.US) a structural advantage.

Furthermore, frequent daily transactions make large orders easier to execute, which in turn will attract more such orders to enter the market; and BlackRock (BLK.US)'s brand reputation reduces the amount of interpretation work for consultants when recommending this product. As a result, Bitcoin's holding structure is uniquely fragmented: although ownership of this network asset is still scattered, and its operating mechanism is not controlled by BLK.US (BLK.US), most of the new investments in the US market are completed through the same sponsor, the same trust agency, the same centralized escrow chain, and a few institutions authorized to issue or redeem shares. Decentralization at the protocol level can coexist with centralization at the capital market level.

It is because of this structure that IBIT (IBIT.US) appears to be so reliable, but it also has certain limitations — it has no specific reserves to deal with Bitcoin's price collapse, and no mechanism to automatically buy when the price falls. BlackRock (BLK.US) is responsible for providing an investment vehicle, and shareholders decide the direction of investment, so as long as new capital flows in, it will give people the illusion that the product has the ability to cushion risk. The September 1 data showed a different situation: IBIT (IBIT.US) experienced an outflow of US$201.2 million on that day, Fidelity's related funds also lost US$43.7 million, and the total assets of the entire fund category decreased by US$236.5 million.

However, after just one trading day, IBIT (IBIT.US) attracted another $115.4 million in inflows, enabling the category to still achieve positive asset inflows. Even then, GBTC (GBTC.US) had an outflow of $56.2 million; by September 3, the fund category ushered in another $7308 million in asset inflows. Since this mechanism can always follow the investor's direction of operation, the fund can sometimes offset the selling pressure of other products, and sometimes sales situations occur as a result.

The increase in shares may create demand for Bitcoin in the underlying market, but price trends will also be affected by factors such as market liquidity, order execution methods, related derivatives hedging measures, and sellers' willingness to bid. The capital flow data reflects marginal demand in the larger market, which also explains why the price of Bitcoin may still fall on days when assets flow in, but may rise on days when assets flow out. The share of IBIT (IBIT.US) in weekly capital flows reflects the degree of dependence of this fund category on this product; and when it can offset the redemption pressure of other products, it indicates that this informal risk buffer mechanism is working.

The amount of shares in circulation in the market can reflect whether the fund continues to expand, and the premium or discount situation can reflect the degree of activity in arbitrage activities. As for the transaction volume, it needs to be listed separately, because although transactions between shareholders may cause many market fluctuations, they will not actually increase the amount of bitcoins held by the fund. In the early days, Bitcoin mainly attracted people who wanted to break away from traditional financial systems. Today, its biggest buyer is a traditional investment product, which allows a wider range of people to participate in Bitcoin investments while allowing them to continue using their original accounts, advisory services, tax documents, and trading habits. The demand driving the development of IBIT (IBIT.US) actually covers a wider range than BlackRock (BLK.US) products, but its concentration is higher than it seems on the surface. Because of this, a single ETF now seems to be a key force supporting the entire US Bitcoin fund category.

Although this structural dependency has improved market efficiency, it has also introduced new systemic risks. Once IBIT (IBIT.US) capital inflows slow down, the liquidity of the entire market will face a severe test.