Odaily News Vetle Lunde, senior analyst at K33 Research, posted on the X platform that according to 13F reports, as of March 31, 937 professional companies invested in US Bitcoin spot ETFs. In contrast, gold ETFs had 95 professional companies investing in the first quarter (Bitwise). Retail investors own most of the circulating disk. As of the end of the first quarter, professional investors held an exposure of $11.06 billion, accounting for 18.7% of Bitcoin ETF AUM. Overall, the largest ETFs attracted the most institutional funds, and ARKB and HODL gained greater institutional dominance, thanks to ARK and VanEck's allocation to these ETFs.