The first Bitcoin exchange-traded fund (ETF), BITO, has recorded its highest weekly trading volume since its launch, with $1.7 billion in trading volume. The Grayscale Bitcoin Trust (GBTC) also saw $800 million in trading volume. The high volume suggests a strong appetite for Bitcoin ETFs, which could attract marquee investors like hedge funds and large financial institutions. However, senior Bloomberg ETF analyst Eric Balchunas believes that BlackRock's spot market Bitcoin ETF may not set a record when approved, as multiple ETFs will likely be launched simultaneously, spreading out volume between them.