what's ark 21shares?
ARK 21Shares is a joint venture between ARK Invest and 21Shares focused on providing regulated access to Bitcoin through exchange-traded funds (ETFs). The flagship product, the ARK 21Shares Bitcoin ETF (ARKB), tracks the performance of Bitcoin using the CME CF Bitcoin Reference Rate - New York Variant, adjusted for expenses and liabilities. It enables investors to gain exposure to Bitcoin, the largest cryptocurrency by market cap, without the complexities of direct ownership, custody, or storage. The ETF holds actual Bitcoin and is traded on the Cboe BZX Exchange, offering simplicity, liquidity, and institutional-grade security. ARK 21Shares emphasizes low fees, with an initial waiver and a competitive 0.21% expense ratio thereafter, catering to both retail and institutional investors. This partnership combines ARK's innovation research with 21Shares' expertise in crypto ETPs to bridge traditional finance and digital assets.
ARKB Bitcoin ETF recorded a $27 million net inflow on January 14, 2026.
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x.com/arkinvestRecorded net inflow of $27 million into ARKB Bitcoin ETF on 2026-01-14.
Recorded net outflow of $45.4 million during the week ending January 10, 2026.
Experienced net outflow of $9.6 million on January 8, 2026.
Recorded net inflow of $36 million into the ARKB Bitcoin ETF on 2026-01-05.
Recorded net inflow of $33.1 million for the week ending January 3, 2026.
Recorded $76.5M in ETF outflows on the final trading day of 2025 (December 31, 2025).
Recorded net inflow of $109.6 million on December 30, 2025.
Experienced a net outflow of $6.66 million on December 29, 2025.
Experienced a net outflow of $21.36 million on December 22, 2025.
Experienced net outflow of $36.96 million on December 17, 2025.
ETF records $34.5M net outflow on December 15, 2025, as part of broader Bitcoin ETF market outflow totaling $357.6M across all products.
ETF records $0.00 net flow on December 12, 2025, as part of broader Bitcoin ETF market inflow totaling $49.1M across all products.
Ark Invest buys $417K worth (13,700 shares) of ARKB Bitcoin ETF.
ETF records $16.4M net outflow on December 11, 2025, as part of broader Bitcoin ETF market outflow totaling $77.5M across all products.
ETF records $0.00 net flow on December 10, 2025, as part of broader Bitcoin ETF market inflow totaling $223.5M across all products.
ETF records $5.26M net inflow on December 9, 2025, returning to positive flows as part of broader Bitcoin ETF market inflow totaling $150.77M across all products.
ETF records $0.00 net flow on December 8, 2025, as part of broader Bitcoin ETF market outflow totaling $60.51M across all products.
Vanguard now supports bitcoin ETFs, allowing its investors to access ARKB through existing brokerage accounts.
ETF records $42.8M net inflow on December 5, 2025, reversing recent outflow trend as part of broader Bitcoin ETF market inflow totaling $54.8M across all products.
ETF records $37.09M net outflow on December 3, 2025, as part of broader Bitcoin ETF market outflow totaling $14.90M across all products.
ETF records $90.9M net outflow on December 2, 2025, as part of broader Bitcoin ETF market inflow totaling $58.5M across all products.
ETF records $7.38M net inflow on December 1, 2025, as part of broader Bitcoin ETF market inflow totaling $0.37M across all products.
ETF records $205.9M net outflow for the month according to monthly summary data.
ETF records $88M net inflow on November 28, 2025, as part of broader Bitcoin ETF market inflow totaling $71.4M across all products.
ETF records $5.97M net inflow on November 26, 2025, as part of broader Bitcoin ETF market inflow totaling $21.25M across all products.
ETF records $11.6M net outflow on November 24, 2025, as part of broader Bitcoin ETF market outflow totaling $151M across all products.
BITB overtakes ARKB in competitive positioning among U.S. Bitcoin ETFs this week, with total U.S. Bitcoin ETF holdings at approximately 1.3 million Bitcoin as of November 22, 2025.
ETF records $94.4M net outflow on November 20, 2025, as part of broader Bitcoin ETF market outflow totaling $903.2M across all products.
ETF records $0 net flow on November 19, 2025, as part of broader Bitcoin ETF market inflow totaling $75.4M across all products.
ETF records $0 net flow on November 18, 2025, as part of broader Bitcoin ETF market outflow totaling $372.8M across all products.
ETF records $29.7M net outflow on November 17, 2025, as part of broader Bitcoin ETF market outflow totaling $220.1M across all products.
ETF records $15.7M net outflow on November 13, 2025, as part of broader Bitcoin ETF market outflow totaling $866.7M across all products.
ETF records $85.2M net outflow on November 12, 2025, as part of broader Bitcoin ETF market outflow totaling $278.1M across all products.
ETF records $102.5M net inflow on November 11, 2025, as part of broader Bitcoin ETF market inflow totaling $524M across all products.
ETF records $0 net flow on November 10, 2025, as part of broader Bitcoin ETF market showing minimal activity with only $1.2M total net inflow across all products.
ETF records $129M net outflow in weekly summary, as part of broader Bitcoin ETF market weekly outflow totaling $1,208.4M across all products.
ETF records $144.24M net outflow on November 7, 2025, as part of broader Bitcoin ETF market outflow totaling $554.19M across all products.
ETF records $60.44M net inflow on November 6, 2025, as part of broader Bitcoin ETF market inflow totaling $220.86M across all products.
ETF records $128.07M net outflow on November 4, 2025, as part of broader Bitcoin ETF market outflow totaling $566.40M across all products.
ETF records $0 net flow on November 3, 2025, breaking the recent pattern of consecutive outflows.
Experiences $237M outflow in October 2025 as Bitcoin ETFs achieve largest monthly trading volume since launch.
ETF records $237.2M net outflow for the month in monthly summary data.
ETF records $19.30M net outflow on October 31, 2025, as part of broader Bitcoin ETF market outflow totaling $191.59M across all products.
ETF records $65.62M net outflow on October 30, 2025, as part of broader Bitcoin ETF market outflow totaling $490.43M across all products.
ETF records $143.8M net outflow on October 29, 2025, reversing the previous day's $75.8M inflow and marking the largest single-day outflow in recent trading history.
ETF records $75.8M net inflow on October 28, 2025, reversing recent outflow trend as part of broader Bitcoin ETF market inflow of $202.4M.
ARKInvest relocates from NYC to St. Petersburg, Florida, as Florida State Board Administration takes a position opposite to proxy advisors ISS and Glass-Lewis.
ETF records $55.02M net outflow on October 23, 2025, marking the second consecutive day of significant outflows.
ETF records $53.90M net outflow on October 22, 2025, reversing the previous day's $162.9M inflow.
ETF acquires ~1,450 BTC from the $162.85M inflow, bringing total holdings to ~47,000 BTC valued at over $5.2B.
ETF records $162.9M net inflow on October 21, 2025, reversing the previous day's zero flow as total Bitcoin ETF market records $477.2M inflow.
ETF records $0 net flow on October 20, 2025, amid total Bitcoin ETF market outflows ranging between -$40.38M and -$291.98M across different reports.
Records $290M outflow in Week 41 of Spot Bitcoin ETF trading, marking the 2nd highest weekly outflow with $34B in trading volume at $111,128 most-traded price.
ETF records $0 net flow on October 17, 2025, amid total Bitcoin ETF market outflow of $364.02M.
ARK21Shares experiences outflows of 2,544 BTC valued at $268.14M on October 17 and maintains holdings of 42,474 BTC ($4.48B).
Experiences its biggest ETF outflows since August with $275.2M in net outflows on Wednesday (October 16).
ETF posts $275.2M net outflow on October 16, 2025, the largest outflow in recent history, amid total Bitcoin ETF market outflow of $530.9M.
ETF records $0 net flow on October 15, 2025, reversing the previous day's $6.8M inflow as total Bitcoin ETF market turns negative with -$104.1M outflow.
ETF records $6.8M net inflow on October 14, 2025, reversing previous day's outflow amid positive total Bitcoin ETF market flow of $102.7M.
ETF records $21.1M net outflow on October 13, 2025, amid broader Bitcoin ETF market weakness totaling $326.4M in total net outflows.
U.S. Bitcoin ETFs reach new record holdings of 1.34 million Bitcoin as of October 4, 2025, up from the previous record of 1.32 million on September 21.
On October 3rd, ARKB sees $35.50 million in net inflows as part of $969.92 million total across all Bitcoin ETFs.
U.S. Bitcoin ETFs including $ARKB reach record holdings of 1.32 million Bitcoin worth $153 billion as of September 21, 2025.
BlackRock purchases 658 BTC ($72.8M) in synchronized buying with existing Ark purchase.
New institutional purchase of 658.5 BTC worth $72.9M completed.
New institutional acquisition of 584 BTC worth $67.5M completed.
Large institutional BTC sale of 670.96 BTC ($76.3M) executed.
Weekly ETF records $268.2M net inflow, marking significant reversal from previous outflows.
ETF records -$191.4M daily outflow on June 17, reversing previous positive trend while market leader IBIT gains $639.2M
ETF records $20.4M weekly inflow, maintaining positive flow trend while capturing 1.5% of total market inflows.
3-for-1 share split scheduled for June 16 to improve retail investor accessibility.
ETF records $281.9M weekly outflow, marking largest capital exodus in recent periods
Daily outflows increase to $89.2M amid broader Bitcoin ETF market weakness totaling $346.8M in net outflows.
ETF records -$34.3M daily outflow while main competitor IBIT sees $481M inflow.
ETF records $101M weekly inflow, reversing previous outflow trend.
Weekly capital outflow of $68.8M amid strong competitor inflows signals market share challenges.
ETF records $45.6M weekly inflow amid overall positive Bitcoin ETF market flows of $920.9M
Major outflows of $457.6M from ETF while competitors gain market share.
ETF experiences $457.6M weekly outflow, marking second-largest movement among Bitcoin ETFs.
Heavy selling pressure observed from ARKB over the past 2-3 days.
Fund experiences outflows while broader Bitcoin ETF market sees seventh consecutive day of inflows totaling $591.3M.
ETF records $267M inflow, leading all Bitcoin ETF products amid $912.7M total market inflows.
Leads Bitcoin ETF market with $116.1M daily inflow, marking largest combined ETF inflow day since January.
Leading Bitcoin ETF inflows with $116m, outperforming BlackRock's IBIT during record $381m market inflow.
ETF records $13.4M net inflows on Tuesday, ranking second among spot Bitcoin ETFs during market recovery.
Volatility metrics show second-highest risk profile among major BTC ETFs at 66.93.