US Bitcoin ETFs Surpasses 500k BTC in Inflows

Bitcoin spot exchange-traded fund (ETF) in the United States has achieved a significant landmark after crossing 500,000 BTC in total inflows. This milestone underscores the growing need for exposure to regulated Bitcoin and cements it as one of the fastest-growing ETFs ever.

Recall that Bitcoin ETFs were approved by the Securities and Exchange Commission (SEC) on January 10 after rigorous checks, and since then, its growth has been immense.

BlackRock’s IBIT Leads ETF Inflow

Vetle Lunde, the Head of Research at K33, a cryptocurrency research and investment company, updated this milestone in a December 12 post on X. According to him, the ETFs have recorded exactly 500,925 BTC ($50 billion) in total inflows since the beginning of the year.

He shared a chart showing the product’s steady growth in cumulative net flows since its launch. As per his chart, Bitcoin ETFs recorded 100,423 BTC as of February 15, 203,103 BTC on March 12, 302,221 BTC on August 26, 205,270 BTC on November 7, and 500,925 as of December 11.

Moreover, Lunde noted that U.S. ETFs now hold more than 2.5% of the total Bitcoin circulating supply of 19.7 million. Mind you, Bitcoin’s total supply is capped at 21 million.

Meanwhile, notable asset managers have made this happen. Data from Soso Value reveals that BlackRock’s iShares Bitcoin Trust (IBIT) led the pack, having achieved the 500k BTC in total inflows milestone last week.

Consequently, the fund cemented its position as the fastest ETF ever to cross the $50 billion landmark, breaking the record in just 228 days, against the previous record of 1,329 days.

Other asset managers that have recorded notable inflows include Fidelity, ARK, 21Shares Bitcoin ETF, and Bitwise. Fidelity’s FBTC has seen $12.22 billion YTD, while ARK’s ARKB and Bitwise’s BITB recorded $2.64 billion and $2.21 billion respectively.

While Coinshares Valkyrie, WisdomTree, VanEck, Invesco Galaxy Bitcoin ETF, and Franklin saw inflows in millions, Grayscale’s Bitcoin Trust saw mostly outflows of over $20 billion during this time.

Bitcoin ETFs Inflow Streak Continues

Meanwhile, U.S. spot Bitcoin ETFs have continued their ongoing positive flow streak. According to Soso Value data, BTC ETFs recorded a daily net inflow of $597.57 million as of December 12, making it the 10th consecutive day of inflows.

BlackRock’s iShares Bitcoin Trust (IBIT) led the day with total inflows of $431.60 million. Bitwise (BITB), Fidelity (FBTC), and ARK (ARKB) were far behind with $61.45 million, $30.94 million, and $8.97 million respectively.

Bitcoin traded at $100,239 at the time of writing, representing a 0.29% decline in the last 24 hours.

Ultimately, the rapid growth of Bitcoin spot ETFs, particularly BlackRock’s iShares Bitcoin Trust, highlights the increasing mainstream adoption of cryptocurrency in regulated markets.

This milestone not only reflects strong institutional demand for Bitcoin exposure but also underscores the evolving trust in crypto-based financial products as a legitimate investment vehicle.