Wu Blockchain has learned that SEC 13F filings show quantitative trading giant Jane Street holds approximately $990 million in spot Bitcoin ETFs, equivalent to about 15,400 BTC at current prices. Around $828 million is allocated to BlackRock's IBIT, with the rest distributed across Fidelity's FBTC, Grayscale's GBTC, and other products. The related holdings are ETF shares, not direct BTC holdings. (wublock123.com)/news/news-66702