Data shows that a significant inflow of funds this week into Fidelity's spot Bitcoin exchange-traded fund, Fidelity Wise Origin Bitcoin (FBTC), has brought its total inflows to the $4 billion mark. Not to be outdone, BlackRock's IBIT has reached an impressive net inflow total of $5.7 billion. In contrast, GBTC experienced more capital outflows, but these were restrained. According to Glassnode, since the launch of the Bitcoin ETF on January 11th, GBTC's total bitcoin holdings have decreased by 33%, with a total outflow so far of $7.4 billion. As it stands now, all Bitcoin ETFs have seen a net inflow totaling $5.3 billion equivalent to 110 thousand bitcoins.