Bitcoin ETF Flows Today: Are Institutions Still Buying BTC?
Daily tracking of U.S. spot Bitcoin ETF inflows and outflows across all major funds. One page, updated every trading day. Bookmark it.
Net Total Flow
+$230.9M
Tuesday, March 31, 2026
BTC Price
$68,123
At market close
Trend Signal
Net inflows signal institutional accumulation.
Fund-by-Fund Breakdown
Tuesday, March 31, 2026| Fund | Issuer | Net Flow |
|---|---|---|
| IBIT | BlackRock | +$156.9M |
| FBTC | Fidelity | +$32.0M |
| GBTC | Grayscale | +$19.2M |
| ARKB | ARK 21Shares | +$11.4M |
| BITB | Bitwise | +$8.7M |
| HODL | VanEck | N/A |
| BTCO | Invesco | +$0.7M |
| BRRR | Valkyrie | +$0.7M |
| EZBC | Franklin | +$1.3M |
| All Funds Combined | +$230.9M | |
Editor's Take
Bitcoin ETFs are absolutely crushing it today, bringing in a massive $231 million net inflow! This strong demand, led by IBIT's impressive haul, clearly signals bullish sentiment and continued institutional adoption for the orange coin.
Ian Gross, Chief Editor
30-Day Flow History
Net flow across all U.S. spot Bitcoin ETFs. Positive = net inflow. Negative = net outflow.
| Date | Net Flow | Trend |
|---|---|---|
| 2026-03-31 | +$230.9M | Bullish |
| 2026-03-29 | -$259.7M | Bearish |
| 2026-03-27 | -$225.5M | Bearish |
| 2026-03-26 | -$171.3M | Bearish |
| 2026-03-25 | +$7.8M | Neutral |
| 2026-03-24 | -$74.5M | Bearish |
| 2026-03-23 | +$167.2M | Bullish |
| 2026-03-20 | -$52.0M | Bearish |
| 2026-03-19 | -$90.2M | Bearish |
| 2026-03-18 | -$163.5M | Bearish |
| 2026-03-17 | +$199.4M | Bullish |
| 2026-03-16 | +$199.4M | Bullish |
| 2026-03-13 | +$180.4M | Bullish |
| 2026-03-12 | +$53.8M | Bullish |
| 2026-03-11 | +$115.2M | Bullish |
| 2026-03-10 | +$246.9M | Bullish |
What Are Bitcoin ETF Flows?
U.S. spot Bitcoin ETFs launched in January 2024 and gave institutional investors a regulated, exchange-listed way to get direct Bitcoin exposure. Each trading day, authorized participants create or redeem ETF shares, which requires the fund to buy or sell actual Bitcoin. When a fund sees net inflows, it buys BTC. When it sees net outflows, it sells. That buying and selling pressure has a direct impact on Bitcoin's spot price.
The biggest player is BlackRock's IBIT, which surpassed $50 billion in assets under management faster than any ETF in history. Fidelity's FBTC is the second largest. Grayscale's GBTC, which converted from a trust structure, has seen persistent outflows as investors rotate into lower-fee alternatives. ARK 21Shares' ARKB and Bitwise's BITB round out the top five by AUM.
This page is updated every trading day after market close. Data is sourced from fund filings and tracked by The Big Coin Report editorial team. For deeper analysis on what ETF flows mean for Bitcoin's price trajectory, read our Bitcoin Price Analysis 2026 and our How Crypto ETFs Work guide.
Not financial advice. ETF flow data is for informational purposes only. Past flows do not predict future price movements. Full disclaimer.