A big company called Fidelity started a new way to buy Bitcoin, and lots of people put money into it really fast. But some other companies that also let people buy Bitcoin lost some money because the people who own them decided to take their money out. So, everyone is trying to figure out where all this money is going and why they are moving it around so much. Read from source...

- The title is misleading and sensationalist, implying that there is a problem or issue with the money flowing into Bitcoin ETFs. However, this is not necessarily true, as it could be seen as a sign of growing interest and adoption of cryptocurrencies by institutional investors.
- The article does not provide any clear definition or explanation of what a spot Bitcoin ETF is, nor how it differs from other types of Bitcoin funds or products. This makes it difficult for readers to understand the context and implications of the data presented.
- The article relies on data from SoSoValue, which is not a well-known or reputable source in the crypto space. There is no information on how the data was collected, verified, or analyzed, nor any indication of the methodology or criteria used to define "mixed picture of investor behavior".
- The article mentions Thailand's SEC amending rules, but does not explain why this is relevant or important for the US market or investors. It also does not provide any details on what the new rules are or how they will affect Bitcoin ETFs in the future.
- The article uses a vague and unclear term "total net asset value" without specifying what it refers to, how it is calculated, or what currency it is denominated in. This creates confusion and ambiguity for readers who want to understand the size and significance of the Bitcoin ETF market.