TLDR
The U.S. Bitcoin Spot ETF market recorded a total daily outflow of $348.10 million on December 31.
 IBIT (BlackRock) posted the largest single-day outflow of $99.05 million, trading $1.68 billion in volume.
 ARKB saw a $76.53 million outflow, while GBTC registered $69.09 million, continuing its net-negative trend.
 ETFs like HODL, EZBC posted minor outflows, while BTCO, BRRR, BTCW showed no daily flow movement.
Combined ETF assets stood at $113.29 billion, representing 6.47% of the total Bitcoin market capitalization.
As of December 31, an update by SoSoValue reveals that the US Bitcoin Spot ETF market recorded a daily net outflow of $348.10 million, marking a pullback in investor activity for the day. Despite this, the cumulative total net inflow remained strong at $56.61 billion. The total value traded stood at $2.83 billion, and total net assets across all funds reached $113.29 billion, which represents 6.47% of Bitcoin’s total market cap.
IBIT Posts $99M Outflow, FBTC Drops with $66M Exit
Tracking the individual ETFs, IBIT (BlackRock, NASDAQ) leads the market with $67.29 billion in net assets. On December 31, it experienced the largest daily net outflow at $99.05 million, equivalent to 1.13K BTC. The fund traded $1.68 billion in value with 33.83 million shares exchanging hands. IBIT traded at $49.65, down 0.36% for the day, with a 0.25% fee and a 3.84% BTC share of the market.
FBTC (Fidelity, CBOE) ranks second in net assets at $17.61 billion. It saw a $66.58 million outflow, representing 762.56 BTC, with $348.69 million in daily trading volume. The ETF closed at $76.23, down 0.42%, and carries no management fee, giving it an edge in cost efficiency. Its market share is 1.01%.
GBTC, BTC, ARKB, BITB Report High Daily Outflows
GBTC (Grayscale, NYSE) holds $14.43 billion in assets and recorded a $69.09 million outflow, or 791.31 BTC, on December 31. The ETF has a cumulative net outflow of $25.25 billion, the only ETF with a negative total inflow. It traded at $68.36, down 0.36%, with a high 1.50% fee and 0.82% BTC share.
BTC (Grayscale, NYSE) holds $4.23 billion in assets with a $11.24 million outflow, or 128.68 BTC. It traded at $38.73, also down 0.36%, with a 0.15% fee and 0.24% BTC share. Its total net inflow stands at $1.94 billion.
BITB (Bitwise, NYSE) reported $3.36 billion in net assets and a $13.76 million outflow (or 157.58 BTC). It traded $124.76 million in value and closed at $47.56, declining 0.36%, with a 0.19% BTC share and 0.20% fee. ARKB (Ark & 21Shares, CBOE) held $3.30 billion in net assets, losing $76.53 million, or 876.52 BTC.
Mid-Tier Bitcoin ETFs Post Mixed Daily Activity Up
HODL (VanEck, CBOE) reported $1.38 billion in assets and a daily outflow of $6.79 million, equivalent to 77.77 BTC. It ended the day at $24.73, down 0.48%, with a 0.25% fee and 0.08% BTC share.
BTCO (Invesco, CBOE) showed $544.25 million in assets with no recorded inflow or outflow. It closed at $87.17, down 0.37%, traded $33.29 million, and maintained a 0.25% fee with 0.03% BTC share. BRRR (Valkyrie, NASDAQ) held $503.46 million in assets and showed no inflow or outflow for the day.
EZBC (Franklin, CBOE) manages $500.03 million in assets and posted a $5.05 million outflow, or 57.85 BTC. BTCW (WisdomTree, CBOE) has $139.52 million in assets and has recorded no inflows or outflows. It closed at $92.68, down 0.33%, with a 0.25% fee and 0.01% BTC share. DEFI (Hashdex, NYSE) reports $11.90 million in assets and a total net outflow of $1.45 million.
