Bitcoin ETFs Record $355M Inflow, BlackRock & Ark21 Lead

Key Insights:

  • Bitcoin spot ETFs December 30 net inflows came in at $355M, per SoSoValue data. Ark 21 posts its December’s biggest single-day inflows.
  • Weekly flows turned into positive inflows of $335.73 million. December monthly outflows stand at $744.49 million.
  • BTC price continues to struggle below $90,000 as ETFs mark second consecutive month of net outflows.

US Bitcoin spot exchange-traded funds (ETFs) posted $355.02 million net inflows on Tuesday, December 30th, breaking a seven-day outflow streak. BlackRock and Ark21 added over $100 million each; four other ETFs also reported inflows. None of the funds offloaded Bitcoin yesterday.

Tuesday’s inflows came in as BTC remained pinned below $90,000 after briefly rising above that level.

Bitcoin ETFs Mark Month’s 2nd Biggest Net Inflows on Tuesday

Bitcoin ETFs reported net outflows for Monday ($19.3M), so as of December 30th, weekly inflows were $335.73 million, SoSoValue data showed. Apart from turning weekly flows positive, BTC ETFs marked the month’s second-biggest net inflow. Meanwhile, monthly net outflows stand at $744.49 million.

December has one more trading day to go. BlackRock Bitcoin ETF (IBIT) was Tuesday’s largest buyer, adding $143.75 million, followed by Ark & 21Shares (ARKB), which added $109.56 million.

Tuesday’s other inflows include: Fidelity (FBTC) added $78.59 million, Bitwise (BITB) added $13.87 million, VanEck (HODL) added $4.98 million, and Grayscale (BTC) added $4.28 million.

US Bitcoin Spot ETFs December Flows | Source: SoSoValue
US Bitcoin Spot ETFs December Flows | Source: SoSoValue

December saw only eight days of net inflows out of the 21 trading days of this month. December 9th showed the largest single-day inflow ($457.29M) for the US Spot Bitcoin ETFs.

ARKB posted its biggest single-day inflows on Tuesday, although, for the month, its net outflows stand at $117.97 million.

ARKB December flows as of Tuesday | Source: SoSoValue
ARKB December flows as of Tuesday | Source: SoSoValue

Both ARKB and BITB hold roughly $3.4 billion in net assets as of Tuesday.

Meanwhile, Ethereum (ETH) ETFs posted net outflows of $67.84 million, breaking a four-day outflow streak. Weekly inflows stand at $58.21 million, and monthly outflows stand at $544.76 million.

Also, on Tuesday, XRP Spot ETFs added $15.5 million, Solana (SOL) Spot ETFs posted net inflows of $5.21 million, and Dogecoin (DOGE) Spot ETFs showed net inflows of $288.13K.

BTC USD Remains Stuck Below $90K

Uncertainty is mounting as Bitcoin (BTC) USD price refuses to exit the $87,000 to $90,000 range.

At press time, BTC USD was trading at $88,724, reflecting a 1% intraday rise and a roughly 2% weekly rise. Bitcoin has been stuck below the $90,000 mark since December 13th, only going above that level for a few minutes.

Pointing to Bitcoin’s persistent consolidation between $88,000 and $90,000, Market analyst Ted Pillows noted on X: “The yearly candle will most likely close in red.”

BTC USD Price Chart | Source: TradingView
BTC USD Price Chart | Source: TradingView

According to the Smart Money Concepts chart on TradingView, $90,000 to $94,000 is the nearest major bearish zone. Meanwhile, $66,000 to $70,000 is the closest major support zone. These zones are marked based on institutional activity.

Source: https://www.thecoinrepublic.com/2025/12/31/bitcoin-etfs-sees-355m-inflow-blackrock-ark21-lead/