The Globe and Mail reports in its Saturday edition that BlackRock's spot bitcoin exchange-traded fund hit $1-billion in assets in the first four days of trading, the first to clinch the milestone among a batch of newly launched ETFs tracking spot bitcoin prices, JPMorgan data show (all figures U.S.). A Reuters dispatch to The Globe says that the U.S. Securities and Exchange Commission approved nearly a dozen ETFs tracking the world's largest cryptocurrency last week, after years of regulatory pushback. Since the launch, BlackRock and Fidelity have pulled the lion's share of inflows as lower fees and name recognition appear to be key factors in drawing investors so far. BlackRock's iShares Bitcoin ETF (IBIT on Nasdaq) accumulated $1.07-billion in assets under management as of Jan. 17, followed by $874.6-million by Fidelity Wise Origin Bitcoin ETF, according to JPMorgan. The nine newly launched ETFs have drawn $2.90-billion in investment flows in the first four days of trading.