Dispute over the capital inflow data of spot bitcoin ETF on September 21
Both CryptoBriefing and CoinDesk reported that the total capital inflow of spot bitcoin ETF on September 21 was approximately US$999 million, but the data given by both parties conflict in terms of the specific amount flowing to BlackRock's IBIT products.
Consensus section
All sources unanimously confirmed that the U.S. spot Bitcoin ETF recorded a net inflow of approximately US$999 million on September 21. Among them, BlackRock's IBIT products led the trend of capital inflows that day. During this period, bitcoin prices showed an upward trend. CryptoBriefing cited data showing prices above $81,000, while CoinDesk pointed out that prices rose to $85,000 this quarter.
The report's divergence point 1: the specific inflow amount of IBIT on September 21
CryptoBriefing reported:
IBIT alone attracted approximately US$618 million in funds, which puts it far ahead among similar products.
CoinDesk reported:
IBIT led the inflow of funds on Monday with $381.37 million, followed by ARK's ARKB with $289.12 million, and Fidelity's FBTC followed closely with $238.84 million.
Verification suggestions:
To resolve this dispute, you need to refer to the daily fund flow disclosure data officially released by BlackRock, or refer to the underlying ETF fund flow data on September 21 provided by institutions such as SoValue/Farside.
报告分歧点二:约9.99亿美元的数据是否仅包含比特币ETF,还是包含了比特币与以太坊ETF的总和?
CryptoBriefing报道:
在当天的单一交易日中,美国现货比特币和以太坊ETF合计吸引净流入12.69亿美元,其中贝莱德的iShares比特币信托领涨。
CoinDesk报道:
美国上市的现货比特币交易所交易基金(ETF)在周一录得9.9895亿美元的净流入,这是自2025年10月6日比特币创下历史新高以来的最大单日流入量。
核实建议:
需查看SoSoValue或Farside提供的9月21日现货比特币ETF与现货以太坊ETF分离的每日流量表以作确认。
结论与分析
对于9月21日现货比特币ETF总计约9.99亿美元的资金流入数据,可视为广泛共识。然而,在未对照底层基金流量数据进行核实之前,不应依赖任何一家媒体机构提供的IBIT具体金额数据(即6.18亿美元与3.8137亿美元之间的差异)。

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